 He was introduced to hip hop music in the 1970s through a friend who lived in his neighborhood, and he would listen to tapes of The Cold Crush Brothers, Grandmaster Flash and the Furious Five and The Sugarhill Gang.DJ Daryll C of Crash Crew used to take Jamar to hip hop shows in New York City.Jamar sold crack cocaine during his teen years, but stopped after people he knew received sealed indictments.