|Birth name||Rowland Constantine O'Malley Armstrong|
|Also known as||Rollo|
|Born||1966 (age 46–47)
Kensington, London, England
|Years active||Since 1992|
Early life 
Armstrong was born to an Irish publisher and English poet. He is also older brother of singer Dido, whom he helped to write and produce the multi-million selling albums No Angel, Life For Rent and Safe Trip Home. He studied at the University of York and was an active member of the student radio station, URY.
Armstrong has appeared on a large number of music projects, both within groups and solo, using various monikers, including Faithless (which he formed in 1995 with Sister Bliss, Jamie Catto and Maxi Jazz), Rollo Goes …, Our Tribe (with Rob Dougan), and Dusted.
In the United States, Rollo is known for his production work on Dido's albums as well as singer/songwriter Kristine W's debut album, Land of the Living. Rollo also co-wrote the song "Who Are You?" by Australian musician Katie Noonan, appearing on her album Skin. Rollo co-wrote and co-produced Felix's hit single "Don't You Want Me", which reached number 6 in the UK Singles Chart.
More recently, Rollo composed the official melody of the UEFA Euro 2008 and UEFA Euro 2012. He was nominated for an Academy Award in the category of Best Original Song for his work with A.R. Rahman and Dido on 'If I Rise', featuring in the 2010 Danny Boyle film 127 Hours.
- See also Faithless discography
- 2000 When We Were Young, as Dusted (with Mark Bates)
- 2005 Safe From Harm (re-release of When We Were Young), as Dusted (with Mark Bates)
- 2005 Instrumentals, as Dusted (with Mark Bates)
- all produced with Mark Bates
- 1997 "Deeper River" (with Pauline Taylor)
- 2000 "Always Remember To Respect And Honour Your Mother"
- 2000 "Childhood/Want You"
- 2001 "Under The Sun"
- Rollo & Rob D productions
- all produced with Rob Dougan
- 1993 "I Believe In You", as Our Tribe (with Colette)
- 1994 "Love Come Home", as Our Tribe (with Frankie Pharaoh and Kristine W)
- 1994 "High", as O.T. Tunes
- 1994 "Hold That Sucker Down", as The O.T. Quartet (with Colette)
- 1995 "Hold That Sucker Down '95", as The O.T. Quartet (with Colette)
- 1995 "High As A Kite", as One Tribe (with Roger)
- 1995 "What Hope Have I", as Sphinx (with Sabrina Johnston)
- 2000 "Hold That Sucker Down 2000", as The O.T. Quartet (with Colette)
- 2005 "Hold That Sucker Down 2005", as The O.T. Quartet (with Colette)
- 2007 "What Hope Have I (Remixes)", as Sphinx (with Sabrina Johnston)
- Rollo Goes...
- 1993 "Get Off Your High Horse", as Rollo Goes Camping (with Sister Bliss and Colette) - UK #43
- 1995 "Love, Love, Here I Come", as Rollo Goes Mystic (with Sister Bliss and Pauline Taylor) - UK #32
- 1996 "Let This Be A Prayer", as Rollo Goes Spiritual (with Sister Bliss and Pauline Taylor)- UK #26
- 1997 "Love, Love, Here I Come '97", as Rollo Goes Mystic (with Sister Bliss and Pauline Taylor)
- Other aliases
- 1992 "Hypnotized", as High On Love (with Chris Rushby)
- 1992 "A Million Ways", as Stoned Democracy (with Chris Rushby)
- 1993 "In My World", as High On Love (with Chris Rushby)
- 1993 "Close (Like An Overdose)", as Stoned Democracy (with Chris Rushby)
- 1996 "Help Me Make It", as Huff & Puff (with Ben Langmaid and Sister Bliss)
- 2000 "Born Again", as Huff & Puff (with Ben Langmaid)
- Single production for other artists
- 1992 Felix - "Don't You Want Me" (with Red Jerry)
- 1992 Felix - "It Will Make Me Crazy"
- 1992 Frankë - "Understand This Groove" (with Rob Dougan)
- 1993 Frankë - "We're On A Mission"
- 1993 U.S.U.R.A. - "Tear It Up"
- 1994 Sister Bliss - "Cantgetaman, Cantgetajob (Life's A Bitch!)" (with Colette)
- 1994 Kristine W - "Feel What You Want" (with Rob Dougan)
- 1995 Kristine W - "One More Try" (with Rob Dougan)
- 1995 Kristine W - "Don't Wanna Think" (with Rob Dougan)
- 1995 Sister Bliss - "Oh! What A World" (with Colette)
- 1996 Kristine W - "Land Of The Living" (with Rob Dougan)
- 1996 Sister Bliss - "Bad Man" (with Junkdog Howler)
- 1996 Pauline Taylor - "Constantly Waiting" (with Sister Bliss and Matt Benbrook)
- 1998 Pauline Taylor - "The Letter" (with Matt Benbrook)
- 2000 Shawn Christopher - "So Wrong" (with Rob Dougan)
- 2000 Sister Bliss feat. John Martyn - "Deliver Me"
- 2000 Sister Bliss - "Sister Sister"
- 2001 Dido - "Thank You"
- 2001 Dido - "Take My Hand" (with Sister Bliss)
- 2003 Dido - "Stoned"
- 2003 Dido - "White Flag"
- 2004 Dido - "Sand In My Shoes"
- 2007 Kristine W - "Sweet Mercy Me" (with Rob Dougan)
- Album production for other artists
- 1996 Kristine W - Land Of The Living (with Rob Dougan)
- 1998 Pauline Taylor - Pauline Taylor
- 2000 Dido - No Angel
- 2003 Dido - Life For Rent
- 2003 P*Nut - Sweet As
- 2005 Enigma - The Dusted Variations
- "Songwriter/Composer: ARMSTRONG ROWLAND CONSTANTINE O MALLEY". BMI Repertoire. Broadcast Music Incorporated. Retrieved 2008-09-29.
- Patrick Janson-Smith (17 January 2007). "William Armstrong — Publisher at Sidgwick & Jackson". Obituaries (London: The Independent). Retrieved 8 October 2008.
- Roberts, David (2006). British Hit Singles & Albums (19th ed.). London: Guinness World Records Limited. p. 197. ISBN 1-904994-10-5.
- "The official UEFA EURO 2008 music". UEFA EURO 2008: 100 days to go. UEFA. 2008-02-28. pp. (page 5). Retrieved 2008-10-07. "For the first time ever, the European Championship has an official melody...composed by Rollo Armstrong of Faithless on behalf of UEFA."
- "Winners for the 83rd Academy Awards | Academy of Motion Picture Arts & Sciences". Oscars.org. Retrieved 2012-04-24.
- Roberts, David (2006). British Hit Singles & Albums (19th ed.). London: Guinness World Records Limited. p. 468. ISBN 1-904994-10-5.
- Faithless at eNotes.
- UEFA EURO 2008 full Trailer Intro Theme Jingle on YouTube. This is the long version of the trailer with the full soundtrack, composed by Rollo.