The Mars Volta
|The Mars Volta|
The Mars Volta on stage at the Vegoose Festival.
|Origin||El Paso, Texas, United States|
|Genres||Progressive rock, experimental rock, hard rock|
|Labels||Universal, GSL, Warner Bros.|
|Associated acts||At the Drive-In, De Facto, Omar Rodriguez Lopez Group, Red Hot Chili Peppers, El Grupo Nuevo de Omar Rodriguez Lopez, Vato Negro, Bosnian Rainbows, Zavalaz|
|Past members||See: Former members|
The Mars Volta was an American rock band from El Paso, Texas, formed in 2001. The band's final lineup consisted of Omar Rodríguez-López (guitar, producer, direction), Cedric Bixler-Zavala (vocals, lyrics), Juan Alderete (bass), Marcel Rodriguez-Lopez (keyboards, percussion) and Deantoni Parks (drums). The band formed following the break-up of Rodriguez-Lopez and Bixler-Zavala's previous band, At the Drive-In. They are known for their energetic live shows and their concept albums.
In September 2012, it was announced that The Mars Volta had entered a hiatus, with Rodríguez-López and Parks forming a new project, Bosnian Rainbows. Four months later, the band announced their breakup. Bixler-Zavala and Alderete subsequently formed a new band, Zavalaz.
- 1 Band name
- 2 History
- 3 Musical style and influences
- 4 Band members
- 5 Former contributors
- 6 Discography
- 7 Filmography
- 8 References
- 9 External links
Cedric Bixler-Zavala stated in an interview:
|“||The Volta is taken from a Federico Fellini book about his films, what he characterizes as a changing of scene, or a turnaround; a new scene to him is called Volta. Y'know, changing of time and the changeover. And Mars, we're just fascinated by science fiction so and it's something that ultimately looked as in anything I write, its meaning is always up to the listener. As the way we write songs and words, if it looks great on paper then to us it's like painting, so if it looks good meaning the second then people usually have a better interpretation than we ever would.||”|
Formation and beginning (2001–2002)
The roots of The Mars Volta are found in the band At the Drive-In. ATDI imploded on the verge of breakthrough, partly due to boredom, partly to musical differences. Members Cedric Bixler-Zavala and Omar Rodríguez-López began to further explore their experimental, dub reggae-influenced side project called De Facto, which featured Bixler-Zavala on drums, Rodriguez-Lopez on bass, Isaiah "Ikey" Owens on keyboards, and Jeremy Michael Ward on vocals, loops and sound effects.
Due to creative differences and discomfort with mainstream success and drug abuse, Rodriguez-Lopez and Bixler-Zavala quit At the Drive-In in 2001. The remaining members of the band formed Sparta. During 2001 Eva Gardner joined the members of De Facto on bass, and they recorded two songs with drummer Blake Fleming and producer Alex Newport, which became the first demo by The Mars Volta. The lineup for their first public show at Chain Reaction in Anaheim, California was Rodriguez-Lopez, Bixler-Zavala, Owens, Gardner, Ward, and drummer Jon Theodore. This lineup recorded three more tracks with Alex Newport, which became the EP Tremulant, released in early 2001 by Gold Standard Laboratories.
After the demise of At the Drive-In, Rodriguez-Lopez and Bixler-Zavala found themselves once again starting from the ground up, touring and performing in smaller venues. In their early years The Mars Volta were characterized by chaotic live shows and heavy drug use.
De-Loused in the Comatorium (2003–2004)
Following Tremulant, The Mars Volta continued touring with a fluid line-up while preparing to record their debut full-length album De-Loused in the Comatorium, produced with Rick Rubin and released on June 24, 2003. Whereas Tremulant had no general theme (except the prophetic mentioning) De-Loused was a unified work of speculative fiction telling the first-person story of someone in a drug-induced coma, battling the evil side of his mind. Though lyrically obscure, The Mars Volta stated in interviews that the album's protagonist is based on their late friend Julio Venegas, or "Cerpin Taxt", an El Paso poet and artist who went into a coma for several years after a deliberate drug overdose, recovered and later committed suicide. He died jumping from the Mesa Street overpass onto Interstate-10 in El Paso during afternoon rush-hour traffic. (Venegas' death was also referenced in the At the Drive-In song "Embroglio" from their album Acrobatic Tenement.)
In an interview with The Aquarian Weekly in 2008, Cedric Bixler-Zavala said about working with Rubin, "Rick really over-simplified some of the parts that we thought were unique, and just made them very digestible. He's got this thing about representing the common man's ears—I'd rather jab the common man's ears. If we don't, we'll never get to a place where future music exists."
The Mars Volta had no official bassist during the recording session, but Flea (of the Red Hot Chili Peppers) played bass on nine of the album's ten songs, with Justin Meldal-Johnsen playing double bass on "Televators." Flea's bandmate John Frusciante also contributed additional guitar, synthesizer and backing vocals to "Cicatriz ESP". After several temporary replacements, permanent bassist for the band was found in Juan Alderete (formerly of Racer X).
Despite limited promotion, De-Loused earned strong reviews, and appeared on several 'year-end best-of' lists. The album remains The Mars Volta's best-seller, with over 500,000 copies sold. Rolling Stone ranked a track from De-Loused, "Drunkship of Lanterns", the 91st Best Guitar Song Ever. The band later released a limited-edition storybook version of the album, available by download from the Gold Standard Laboratories website. The book speaks of Cerpin Taxt (Julio Venegas) and his suicide.
While on tour with the Red Hot Chili Peppers in support of the album, founding member Jeremy Michael Ward died of heroin overdose. The band had canceled the tour's second leg, and the first single from De-Loused was later dedicated to Ward. It was this event which finally convinced band leaders Rodriguez-Lopez and Bixler-Zavala to purportedly quit using opioids. “One day, we were all getting high, and Jeremy asked me if I could see he had worms in his head,” Cedric recalls. “I never touched the stuff again. His passing was the final nail in the coffin. We never went back.”
Frances the Mute (2005)
As the band resumed touring to support De-Loused, they added Marcel Rodríguez-Lopez (Omar's brother) on percussion. Work on their second album began in 2004. That year the band received the American Society of Composers, Authors and Publishers Vanguard Award.
In 2005, the band released Frances the Mute. The story given by the band on the album's concept concerns a diary that had been found in a repossessed car by late sound technician Jeremy Ward, while working as a repo-man. The author of the diary is unknown but appeared to be someone who was adopted and was searching for their birth parents, and who may have suffered from mental illness caused by the death of a loved one. The lyrics for each track on the album are loosely based on characters and life events described in this person's diary.
Frances the Mute started as a bigger commercial hit than De-Loused, moving 123,000 copies in its first week, and debuting at No. 4 on the Billboard album charts. Reviews of Frances were generally positive (with a 75 on Metacritic) if somewhat polarized; Rolling Stone called it "a feverish and baroque search for self that conjures up the same majesty and gravity as Led Zeppelin three decades before", and even the detractors of Frances the Mute generally praised the band's musical abilities. "L'Via L'Viaquez" was later released as a single, stripped down from its original 12-minute length to five minutes. Frances the Mute has sold nearly 465,000 copies in the United States, according to Nielsen SoundScan ratings.
Rodriguez-Lopez wrote all of the instrumental parts as well as arranging and producing the recording sessions himself. He used a method that Miles Davis used to evoke great performances from bandmates: refusing to let the other members hear each other's parts, or the context of their own part, thereby forcing them to play each part as if it were a self-sufficient song. In order to accomplish this, the musicians recorded to the pulse of a metronome. While in the studio, Rodriguez-Lopez recruited Adrián Terrazas-González to play saxophone, flute, and additional wind instruments for the album. Terrazas-González was added as a permanent member to The Mars Volta while touring in support of Frances the Mute.
Several songs written during the original recording sessions for the album never made the final cut. Notably, the self-titled 14-minute epic "Frances the Mute", which was originally to open the album and was ultimately supposed to decode the album's concept, was not included due to time constraints. Instead the track was featured as a b-side to the single release for "The Widow". .
On May 20, 2005, instead of playing a traditional set at KROQ's Weenie Roast Festival, the band played a 50-minute improvisation jam that was jokingly named on-the-spot as "Abortion, The Other White Meat" by Rodriguez-Lopez. In keeping with The Mars Volta tradition of testing and developing new work live, parts of "Abortion" later appeared on "Population Council's Wet Dream" from Rodriguez-Lopez's 2009 album Old Money.
Mid-way through their headlining U.S. tour, former At the Drive-In member Paul Hinojos left the band Sparta to join The Mars Volta, claiming, "My time with Sparta has run its course, and simply wasn't fun anymore." Hinojos joined as rhythm guitarist and became the band's sound manipulator, the position previously held by the late Ward. Hinojos had previously toured with The Mars Volta in 2003 and 2004.
During mid-2005, the band toured in support of the album with System of a Down and curated the All Tomorrow's Parties festival at Camber Sands in England. In addition, a full-length live album named Scabdates was released on November 8, 2005.
Upon finishing the majority of touring for Frances the Mute in fall 2005, Rodriguez-Lopez traveled to Amsterdam and wrote what became Amputechture, which was released on September 8, 2006 in Europe, on September 9, 2006 in Australia and on September 12, 2006 in the U.S. Rodriguez-Lopez spent much of his time in Amsterdam working on and performing various solo projects most notably under the name "Omar Rodriguez Quintet." During this time Rodriguez-Lopez also composed the score to the film El Búfalo de la Noche, which was written and directed by Guillermo Arriaga and Jorge Hernandez Aldana respectively. The Mars Volta as a whole performed the score.
Amputechture was produced by Rodríguez-Lopez and mixed by Rich Costey. Jeff Jordan provided the artwork, making it their first album not to feature the work of Storm Thorgerson. It was once again a concept album, but rather than telling a story, the album was a series of vignettes, with each song telling a different story. It became the last album with drummer Jon Theodore, whom Rodriguez-Lopez fired before touring in support of the album. Rodriguez-Lopez said in an interview with an Italian fan site that Theodore was the only member in the band who wasn't happy playing live and brought down the moods of the rest.
John Frusciante was featured on every track on Amputechture, except for "Asilos Magdalena." Rodríguez-Lopez contributed the solos and riffs where the guitar work needed to be doubled. Bixler-Zavala said in an interview, "...he taught Frusciante all the new songs and Frusciante tracked guitars for us so Omar could sit back and listen to the songs objectively. It's great that he wants to help us and do that."
On July 28, 2006, the drummer's spot was filled by Blake Fleming, formerly of Laddio Bolocko, Dazzling Killmen, and the very first Mars Volta demos. A new song titled "Rapid Fire Tollbooth" was debuted live on September 22, 2006 in Chicago, Illinois, as reported by fans and attendees of the show who had received set lists from the stage. The song originally appears on Rodriguez-Lopez's solo album Se Dice Bisonte, No Bufalo. The song eventually evolved into the track "Goliath" from the band's fourth studio album.
On September 25, 2006, The Mars Volta played a unique set on the opening night of a double-header in Toronto, Ontario. Cedric Bixler-Zavala fell ill and could not perform, so The Mars Volta played with John Frusciante on third guitar. The set consisted of over 47 minutes of instrumental material, including a lengthy cover of the Pink Floyd composition "Interstellar Overdrive." On October 17, 2006, while opening for the Red Hot Chili Peppers in East Rutherford, New Jersey, the band played with drummer Deantoni Parks as Rodriguez-Lopez had fired Fleming because of complications within the band. Parks remained with the band only until the conclusion of the Japanese tour because of his prior commitments with other bands. On October 31, 2006 in Cleveland, Ohio, as Parks couldn't perform, The Mars Volta played approximately 40-minute improvisation set as a rehearsal for another drummer, Thomas Pridgen.
On a 2006 episode of The Henry Rollins Show, The Mars Volta performed "Tetragrammaton" and "Day of the Baphomets" in a rare television performance. Afterwards, they did an interview with Rollins about the creation of Amputechture.
The Bedlam in Goliath (2008)
In 2007, Thomas Pridgen became the new permanent drummer for the band. Pridgen's first full-time appearance was at the March 12 show in New Zealand, where the band debuted the song "Idle Tooth" which was later renamed "Wax Simulacra" for the forthcoming album. After shows in New Zealand and Australia, The Mars Volta toured a few West Coast venues as the headliner, then entered the studio to record their fourth LP, The Bedlam in Goliath. One of these performances was captured in a live concert DVD (which still remains unreleased to date) shot by director Jorge Hernandez Aldana.
Despite finding a permanent drummer and getting the band back on track, the recording and production of the album was reportedly plagued by difficulties related to a bad experience with a Ouija board purchased in a curio shop in Jerusalem. According to Rodriguez-Lopez, their original engineer experienced a nervous breakdown, his studio flooded twice, and both he and mixer Rich Costey claimed that various tracks would disappear at random.
On November 5, 2007, The Mars Volta released a document by Jeremy Robert Johnson titled, "The Mars Volta's Descent into Bedlam: A Rhapsody in Three Parts." The document includes a history of the band and describes the obstacles and inspirations they encountered in the creation of The Bedlam in Goliath. On November 20, 2007 "Wax Simulacra", the first single from the forthcoming album, was released with a cover of "Pulled to Bits" by Siouxsie and the Banshees as the b-side.
The band kicked off their supporting tour with a December 29, 2007 "secret show" at the Echoplex in Los Angeles, California, followed by a special New Year's Eve performance at San Francisco's Bill Graham Civic Auditorium. That night they played their first ever acoustic set, which included six songs and live performance of "Miranda, That Ghost Just Isn't Holy Anymore" The band then departed on a club tour of east coast U.S. throughout January, with an album release show at San Diego's Soma, followed by another month's worth of European dates from mid-February to mid-March.
On January 2, 2008, The Mars Volta released an online game called "Goliath: The Soothsayer", based on a true story that inspired their forthcoming album The Bedlam In Goliath. The album chronicles the band's purported experience with the "Soothsayer", a Ouija board owned by vocalist Cedric Bixler-Zavala and its transition from a source of fun on tour to a psycho-spiritual force that almost tore the band apart. The game was available for a limited time exclusively via Amazon.com.
On January 17, 2008, the band made their U.S. network television debut, performing "Wax Simulacra" on the Late Show with David Letterman (Rodriguez-Lopez, Bixler-Zavala and Hinojos had appeared on the show with At the Drive-In in 2000). On January 22, they made a surprise appearance at Toronto, Canada's MTV Live studios, where they performed "Wax Simulacra" and an extended version of "Goliath." In late January, the new album debuted at a career-best No. 3 on the Billboard 200.
The song "Wax Simulacra" won the 2009 Grammy Award for Best Hard Rock Performance. It was the band's first nomination and win. The band members thanked their families and Bixler urged people not to forget the memories of the recently departed Lux Interior and Ron Asheton.
Omar Rodriguez-Lopez had discussed the band's next album as early as January 2008, the month that The Bedlam in Goliath was released, claiming "I consider it to be our acoustic album." Cedric Bixler-Zavala had expressed an urge for the album to not be released on a major label. In February 2009, Rodriguez-Lopez claimed "the next two Mars Volta records are already recorded and waiting for a release date."
On April 14, 2009, The Mars Volta announced their fifth studio album, entitled Octahedron. It was released June 23 in the United States and June 22 in the rest of the world. A vinyl version was released on July 21 in a limited edition of 500 LPs. In the spirit of distillation of the band's sound, Rodriguez-Lopez asked saxophonist Adrián Terrazas-González and guitarist/sound manipulator Paul Hinojos to leave. Regarding their departure, percussionist Marcel Rodriguez-Lopez noted that: "it's like we got a whole new band. It's two less members – we got to play differently."
An excerpt from The Mars Volta's performance at the All Tomorrow's Parties, UK 2005 A Nightmare Before Christmas festival was featured in the All Tomorrow's Parties film, which was released in cinemas during October 2009.
During the Octahedron tour, the show on October 23 in Raleigh, NC was unexpectedly cancelled. It was supposed to be the final show of the North American leg of the tour, but was cancelled due to an argument between Bixler-Zavala and Thomas Pridgen, the drummer at the time, which ended with Pridgen abruptly leaving the venue. A month later, Pridgen confirmed his departure from The Mars Volta via Facebook stating he was "not in TMV anymore". In a February 2011 interview, Pridgen said he left the group "because the singer had a jealous ego trip. There's nothing more to elaborate on"; however, Juan Alderete stated in 2013 that "Thomas got really drunk, did some bad things and did some real damage to the trust we all had with him." The band later completed the tour with drummer Dave Elitch. They played throughout Europe and Australia until the end of January 2010.
In October 2010, The Mars Volta played two shows in Brazil and Chile. Long-time keyboardist, Ikey Owens, was absent during these dates due to touring commitments with his own project, Free Moral Agents.
Shortly after Octahedron's release, Rodriguez-Lopez claimed to have put the supposed follow-up "on hold" and was starting work on a completely new album. In an April 2010 interview with Rolling Stone, Rodriguez-Lopez talked about trying to loosen his grip in the studio. He claimed to have finished writing the album, and was awaiting lyrics and vocals from Bixler-Zavala. Rodriguez-Lopez spent most of 2010 focusing on his solo career, and little information regarding the sixth Mars Volta album was released. During this year drummer Deantoni Parks began touring with Rodriguez-Lopez as well as appearing on several solo records, and Cathy Pellow of Sargent House Records confirmed that Parks was in talks to become the next drummer for The Mars Volta.
In 2011 Rodriguez-Lopez spoke about the band's new album in several interviews, saying that it would feature thirteen songs which, "[are] a simplified version of what we've done before", and would be released "Whenever the record label decides to put it out". Bixler-Zavala took the opportunity to make a few remarks on the sound of the album, indicating a drastic change in sound for the band, referring to the new sound as "future punk.”
On March 19, 2011 the Omar Rodriguez-Lopez Group performed at SXSW. Bixler-Zavala joined the group as a vocalist, performing entirely new material with the band, which led to speculations of the show being a secret Mars Volta show under the Omar Rodriguez-Lopez Group moniker. The Group continued to tour throughout April with the same lineup of Omar and Marcel Rodriguez Lopez, Bixler-Zavala, Juan Alderete, sound manipulator Lars Stalfors, and Deantoni Parks. An official Mars Volta tour began in summer of 2011, consisting of them opening for Soundgarden on select dates. This was in addition to their opening slot for the Red Hot Chili Peppers in their one-off gig in Hong Kong on August 9, 2011. During these shows the band continued to play the new material premiered during the Omar Rodriguez-Lopez Group tour earlier in the year, with Bixler-Zavala telling the crowd at one show that he was "inviting them to a private rehearsal for their new album," confirming the material was off the band's upcoming album.
Keyboardist Ikey Owens, who had played with the band since its inception, was noticeably absent from all 2011 dates. When asked in an interview, Owens stated that he knew "Absolutely nothing [of the upcoming album]. I haven't heard one note of it; I haven't played on it. I don't know if I am going to play on it; I have no idea". Bassist Juan Alderete later revealed via his Twitter page that Owens was no longer playing with The Mars Volta as he was busy "producing bands". Percussionist Marcel Rodriguez-Lopez and (previously offstage) sound manipulator/engineer Lars Stalfors took over keyboard and synth duties with the band in lieu of Owens.
On the 12th of January it was revealed that the upcoming album will be called Noctourniquet. Later that week, an official page went up confirming Noctourniquet as the album title along with unveiling the album art and a full track listing and announcing March 27, 2012 as the release date. The album's first single, "The Malkin Jewel," was first broadcast on February 13 and subsequently released on February 14.
Hiatus and breakup (2012–2013)
After the conclusion of Noctourniquet tour, Omar Rodriguez-Lopez decided to put The Mars Volta on hold to fully concentrate on his new project, Bosnian Rainbows, which also features Deantoni Parks. When asked in an interview if the band will reunite, he stated, "I don’t know, and I'm not insecure enough to have to ask myself that. It’s like, we've done that for ten years, eleven years. Now we’re all doing different things, and everything that we’re doing informs how we express ourselves, and so if that happens then it happens and if it doesn't it doesn't. It’s not something to be worried about. It shouldn't occupy a space in the mind. There’s way too many things that are much too important to occupy space in the mind."
On January 23, 2013, Cedric Bixler-Zavala revealed that he was no longer a part of The Mars Volta on Twitter and that the band had broken up, stating:
|“||Thank you to all Volta fans you deserved more, especially after the way you rooted for us on this album. I tried my hardest to keep it going, but Bosnian Rainbows was what we all got instead. I can't sit here and pretend anymore. I no longer am a member of Mars Volta. I honestly thank all of you for buying our records and coming to our shows. You guys were a blast to play in front of. We could never had done it without you. My dream was to get us to the point where Jon Theodore and Ikey Owens came back but sadly it's over. Thank you a million times over for ever giving a fuck about our band. For the record I tried my hardest to get a full scale North American tour going for Noctourniquet but Omar did not want to. I guess a break from Mars Volta means starting another band and ignoring all the support the fans gave us. I tried my hardest, guys. All I can do is move forward with my music and just be happy that Volta ever happened at all. God Damn we had a blast! Thank you again. I just feel really guilty for not even really saying the truth because a hiatus is just an insult to the fans. To all our fans all over the world: thank you for giving a fuck. You all ruled! I don't think I'll ever hear "A Fistful Of Dollars" the same. My record will see the light of day soon and I'm excited because it sounds nothing like my previous endeavors. I'm not joking about any of this, I owe it to you guys (all fans) to be serious about this. Thank you to all past members who helped Volta along, as well. We blasted through like a comet and left our mark! If you ever see me in person and want to know why I'll tell you my side of the story. Finally, please just be happy that it happened at all, remember all the opposition we were met with for just starting a new band back in 2001."||”|
Bixler-Zavala subsequently focused on his solo music and eventually formed a new band, Zavalaz, which also includes Juan Alderete. He stated that he's currently not on speaking terms with Rodriguez-Lopez: "The falling out had been four years in the making, so the final announcement on my part was really just to let the children know that Mom and Dad were splitting up".
Rodriguez-Lopez, meanwhile, doesn't rule out the possibility of The Mars Volta reuniting in the future: "Because of all my anger and how I dealt with people, I spent so much of my life just closing doors left and right. At this point, I refuse to close any, only to open new ones. Whatever comes my way - as long as it's filled with joy and positivity - I want to give my talents to it. [...] I'm not interested in throwing tantrums any more." He elaborated further on an article with Billboard, acknowledging Bixler-Zavala's decision to depart TMV, effectively ending the 20+ year musical partnership between Rodriguez-Lopez and Bixler-Zavala for the foreseeable future. Rodriguez-Lopez stated, "I was making a film and heard about it hours later; people were like, 'Are you OK?' I understand where he's coming from; I've known the guy for 22 years. I'll always respect and support any decision he makes. If that's how he wants it, I totally get it and I support it.".
Other band members have yet to make an official statement regarding the band's breakup and future.
In August 2013, a collection of unreleased songs, demos, alternate versions, and in-studio jams roughly spanning from 2005 until the Noctourniquet sessions was leaked online. The source of these recordings still remains unknown. 
Musical style and influences
|This section needs additional citations for verification. (February 2013)|
The band's music has been described as progressive rock, experimental rock, hard rock, jazz fusion, electronic rock, neo-psychedelia, post-rock, post-hardcore, and math rock.
The band's music also features elements of a wide variety of genres, including punk rock, psychedelic rock, funk, jazz, salsa, dub, krautrock and electronica. Omar Rodriguez-Lopez commented, "Progressive is not a dirty word for people to use about us. If you're not moving forward, you're stagnant. And that's no way to live". Almost the entire band's output was composed solely by Rodriguez-Lopez, with lyrics and vocal melodies written by Cedric Bixler-Zavala. They cited artists/bands such as King Crimson, Can, Led Zeppelin, Captain Beefheart, Frank Zappa, Pink Floyd, Larry Harlow, Miles Davis, Fela Kuti, Ennio Morricone, Throbbing Gristle, Black Flag, Brainiac, Bjork, Roni Size, Jaga Jazzist and Aphex Twin as their influences. According to Rodriguez-Lopez, cinema also largely influences his songwriting: "Creating tension, creating flow, creating scenes, creating fast-paced scenes, creating minimal dialogue - it's one of our biggest influences".
According to the liner notes for Amputechture, The Bedlam in Goliath, Octahedron and Noctourniquet: "The partnership between Omar Rodríguez-López & Cedric Bixler-Zavala is The Mars Volta. These compositions are then performed by The Mars Volta Group."
- Omar Rodríguez-López – guitar, direction, backing vocals (2001–2012)
- Cedric Bixler-Zavala - vocals (2001-2012)
- Juan Alderete – bass (2003–2012)
- Marcel Rodriguez-Lopez – percussion (2003–2010); keyboards, synthesizers (2005–2012)
- Deantoni Parks – drums (September–November 2006, 2010–2012)
- Lars Stalfors – keyboards, sound manipulation (2008–2010 live offstage, 2011 on stage; also works as recording and mixing engineer in studio)
- Paul Hinojos – sound manipulation, guitar (2003–2004 live offstage, 2005–2008 joined officially in recording and onstage)
- Jeremy Michael Ward – sound manipulation (2001–2003)
- Jason Lader – bass (2003)
- Flea – bass (2002 in studio for De-Loused in the Comatorium sessions, also recorded trumpet in 2004 for Frances the Mute)
- Ralph Jasso – bass (2002)
- Eva Gardner – bass (2001–2002)
- Dave Elitch – drums (Tour fill-in November 2009 – October 2010)
- Thomas Pridgen – drums (October 2006 – October 2009)
- Blake Fleming – drums (2001, July–September 2006)
- Jon Theodore – drums (August 2001 – July 2006)
- Henry Trejo - acoustic guitar (late 2009–early 2010; primarily works as Omar's guitar tech)
- John Frusciante – guitars (2002–2008 in studio, occasionally part of a live setting)
- Adrián Terrazas-González – woodwind, percussion (2004 in studio, 2005–2008 live)
- De-Loused in the Comatorium (2003)
- Frances the Mute (2005)
- Amputechture (2006)
- The Bedlam in Goliath (2008)
- Octahedron (2009)
- Noctourniquet (2012)
- Coachella (2006)
- All Tomorrow's Parties (2009)
- Get Him To The Greek (2010)
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|Wikimedia Commons has media related to The Mars Volta.|
- Official website
- Omar Rodriguez Official Website
- The Mars Volta Live Concert Repository
- The Mars Volta Italian fansite
- Interview with Omar about The Bedlam in Goliath