Keith Farrelle Cozart (born August 15, 1995), better known by his stage name Chief Keef, is an American rapper and producer from Chicago, Illinois. Known as one of the central pioneers and propagators of the prominent Chicago drill style, he was 16 upon signing a multi-million dollar record contract with Interscope Records. Keef is also the CEO of his own label imprint Glory Boyz Entertainment, later renamed Glo Gang. He released his debut mixtape The Glory Road on July 9, 2011 followed by Bang in October that year.