About Grandmaster Caz
Curtis Brown, better known by the stage names Grandmaster Caz and Casanova Fly, is an American rapper, songwriter, and DJ. He was a member of the hip-hop group The Cold Crush Brothers from 1979 to the mid-1980s. He is best known as the (uncredited) main writer of Big Bank Hank's raps on the seminal 1979 hip-hop single by The Sugarhill Gang, "Rapper's Delight".
Biography source:
Wikipedia
