Named by the New York Times as "Hip Hop's One-Man Ministry of Insults", he is a renowned DJ and music producer known for his work with a variety of hip hop artists like Fat Joe. He has released almost a half a dozen successful albums since his music career began in 2003.
He started as a prominent graffiti artist at the height of the movement in the 1980s and was featured in the documentary Style Wars. However, after the movement's decline, he began dealing narcotics and was later jailed until his release in 1990.
In 2006, he released the collaborative album The Champions: North Meets South with Greg Street.
His real name is Keith Grayson and he is a born and raised New Yorker.
His 2015 single "Rollin 25 Deep Pt. 2" featured over a dozen renowned hip hop artists including Jay Rock.