Diamond D is a hip hop producer and MC from the Bronx, New York City, and one of the founding members of legendary NY crew D.I.T.C. He started out as a DJ for Jazzy Jay back in the early 1980s and was at the same time perfecting his skills in beat making and turntablism, and together with rhyme partner Master Rob, he was one half of the group Ultimate Force. The group got signed by Jazzy Jay to Strong City and Diamond and Rob started recording their debut album, I'm Not Playin', in 1988 and released the 12-inch single with the same title, which spawned a buzz in the underground.