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Kela received the Stuff Magazine Award for "renegade of Style" 2006 in Los Angeles, he toured alongside Testicicles (Dev, Lightspeed Champion & GLC (Goldie Lookin Chain) while performing on festival dates with Pharrel Williams and N*E*R*D. He also went on a U.S tour alongside DJ Z-Trip in 2007. From 2003 to 2008, Kela was a special guest at various N*E*R*D shows and festivals across Europe, including Seattle for the Sprite Liquid Mix festival and Oxegen Festival, Dublin. In 2008 Kela performed with Prince and Nikka Costa at the O2 Arena.
His live shows incorporates drum & bass, electro and hip hop styles, singing, MCing, very realistic vocal scratching, body movements, and imitations of popular songs such as "I'm a Slave 4 U" by Britney Spears and "Tom's Diner" by Suzanne Vega. He calls his technique "multivocalism", a term coined by longtime artwork collaborator Mark Splinter in 2000. Kela's crew has performed hundreds of live shows all around the world; they are known as "Spit Kingdom."
Kela released The Permanent Marker in 2002, a beatbox-only album featuring Fallacy, Harry Love, and Normski. He then toured with Mobb Deep, Redman, Busta Rhymes, and others. He was second billed at the Earls Court Music festival with Jay-Z.
The Elocution album  (Sony BMG) came in 2005 & included The Elysian Quartet on strings, backing vocalists Rookwood and Trip, DJ Skeletrik, and his producer Spider on keys and vocals. It also featured Sweetie Irie, James Rushent (Does It Offend You, Yeah?), Roots Manuva, and Neneh Cherry, with writing from Karen Poole. His song Jawbreaker was put on the FIFA Street 2 soundtrack and is to date one of the strongest releases off the Elocution album.
KK appears in an advert for "Rowntree's Fruit Pastilles" and regular appearances on TV shows such as "Big Brother's Little Brother", the Royal Variety Performance, Blue Peter, 4Music, Britain's Got Talent, and four Absolut Vodka commercials in the US.
He also created a mix cd alongside his then crew Spitkingdom, entitled "Days That Shook The World" produced by James Rushent (Does It Offend You, Yeah?) and DJ Skelectrik, which received "Best Mix CD 2007 in DJ Magazine UK. He also released the cd Ontourvandamage in 2008, produced by DJ Plus One (Scratch Perverts, Jack Beats)
Spitkingdom were also the team behind the legendary Hip Hop London weekly SpitkingdomHQ @Herbal in Shoreditch between 2004 and 2007, which saw a wealth of artists perform, such as The Mixologists, Killa Kela, Skelectrik, Trip, Rookwood, Spider J, and DJ Martello, and special guests including Andy C, Whookid (50 Cent), Goldie, Artful Dodger, Dynamite, Nicky Blackmarket, Cash Money, Kool Herc, Chase & Status, Scratch Perverts, and Stanton Warriors.
In 2009 Kela created his debut album Amplified! alongside producers Andy Knowles (of Franz Ferdinand fame), Alan Braxe (Stardust, Paris), Martin Rushent (Human League), The Shoalin Punks, James Rushent (The Prodigy, Does It Offend You, Yeah? and long standing friend), and Stunt Double, and featuring artists such as DJ Craze, Bashy of Gorillaz, Hadouken!, Lateef The Truth Speaker, and Spider J of Lee Scratch Perry.
The album contained "Built Like An Amplifier" which included remixes from Dave Spoon, Sway, and Faith SFX. "Everyday" was produced by Alan Braxe with remixes from LifeLike, Jakwob, and Franz Ferdinand. It also included "Get A Rise," featuring Hadouken, which was heavily featured on the Need for Speed: Hot Pursuit soundtrack.
Other features include a Mentos candy commercial, Absolut Vodka Commercials for North America (2004), recent work alongside stylists Judy Blame, PinsLondon, Noki. studio work with Tinie Tempah, Wiley from his "See Clear Now" Album, The Kool Kids (US), visuals and beatbox for the new Gorillaz Soundsystem project, and recording with The Glitch Mob.
On 28 September that year, Killa Kela appeared at the London School of Economics.
KK performed at the Glastonbury main stage to 83,000 people, as well as touring Australia and Asia.
- Antistatic Mouthwash mix tape (2000)
- Heavy Artillery - All Terrain Series (2001)
- Crop Circles - All Terrain Series (2001)
- Permanent Marker (2002)
- For Those Who've Joined Us (2003)
- Jawbreaker (2003)
- Elocution (2005)
- Secrets (2005)
- Days That Shook The World Mix CD (2006)
- Reveal Your Inner Self (2007)
- Ontourvandamage Mix CD (2008)
- NightWatcher (2008)
- Built Like An Amplifier (2009)
- Everyday single (2010)
- Amplified! (2010), released through 100% Records
- "Music - Killa Kela". BBC. 1970-01-01. Retrieved 2014-08-19.
- "Basement Jaxx - Oh My Gosh (CD) at Discogs". Discogs.com. Retrieved 2014-08-19.
- "Killa Kela". Thesituation.co.uk. 2006-04-24. Archived from the original on 16 April 2011. Retrieved 2014-08-19.
-  Archived 17 March 2013 at the Wayback Machine.
- Alan Braxe / Fallon / Killa Kela / Stanton Warriors – Nightwatcher (Show Me) /Addictive – Composed by Alain Quéme / D. Butler / Fred Falke / Mark Yardley / R. Thomas / Vicky O'Neill at AllMusic. Retrieved 24 March 2016.
- Alan Braxe / Fallon / Killa Kela – Nightwatcher (Show Me) – Composed by Alain Quéme / Fred Falke / Lee Potter / Vicky O'Neill at AllMusic. Retrieved 24 March 2016.
- "Patsy Kensit splits with fella - now". Nowmagazine.co.uk. 2007-08-09. Retrieved 2014-08-19.