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Karl later entered the Roll Call freestyle competition on Los Angeles radio station Power 106, where he lasted a record 45 days on air to become the show's all-time champion. Karl began collaboration with Limp Bizkit's DJ Lethal, creating a demo exhibiting his satirical style and tightly-wound rhymes. He eventually signed with Interscope Records, where he recorded what was to be his debut CD, Your Housekeeper Hates You, which included guest appearances by Redman, Kanye West, will.i.am, DJ Quik, Fabolous, Mýa, Sugar Ray, Celph Titled, DJ Clue and MC Serch. However, Interscope informed Karl that his CD could not be commercially released due to scheduling conflicts and he decided to leave Interscope.
Karl signed with EMI Music Publishing. and ended up releasing his debut CD, now titled The Great Escape on Headless Heroes Records. His music was featured in the video game NBA Live 2003, a game in which he was also a hidden character. His song, "Back/Forth," was also featured in the 2009 movie It's Complicated.
Karp owns and operates Gallery 1988, two pop-art focused galleries in Los Angeles, California both located on Melrose Avenue, as well as co-writing the book Just Can't Get Enough for Abrams Books with Matthew Robinson. Gallery 1988 is well known for its Kevin Smith hosted annual show, Crazy 4 Cult, where 100 artists reinterpret classic cult movies in their own style. Karp was also the brand manager and designer for Pete Wentz's Clandestine Industries. His marketing company, Tyson/Givens Design & Marketing created the LOST Underground Art Project for the show's final season and recently worked with the TV show "Breaking Bad" 
Kapr was a host on a podcast called Hype Men in which he, Eric Rosenthal and Jeff Rosenthal discussed hip-hop. It was started in August 2010 and ran until July 2011.
He currently hosts a show on SModcast Internet Radio (S.I.R.) called Get Up On This in which he, Matthew Robinson and a guest discuss things they think will soon become popular. The show is released as a Podcast on the SModcast Podcast Network and iTunes.
Karp appeared on The Howard Stern Show in 2011 to talk about his time in the rap industry and perform The Roll Call with Howard & Lisa G. He also acts as the Creative Director at comedy YouTube Channel, JASH, where he has produced and written on projects like The ArScheerio Paul Show & 5K Video.
- Just Can't Get Enough (2007) Co-written with Matthew Robinson
- Leeds, Jeff (2002-11-11). "No Rap on Eminem: He Gets His Shot, His Opportunity, and Doesn't Let It Slip: Record labels trying to duplicate Eminem's cross-racial success are finding it difficult to make a connection with rap audiences". Los Angeles Times. p. A1.
- Stirling, Stephen (2006-01-09). "Hot Karl: The Great Escape". PopMatters. Retrieved 2008-06-25.
- Clippers 2013
- http://damoncarltonandapolarbear.com/dcpb/ DamonCarltonAndAPolarBear.com