Curtis Brown, known professionally as Grandmaster Caz, is an American rapper/songwriter/DJ. He currently works as a tour guide for Hush Hip Hop Tours, a hip hop cultural sightseeing tour company in New York City, and is a board member of The Kennedy Center’s Hip Hop Council, Hip Hop Ambassador and board member for Windows of Hip Hop and CEO of GMC Entertainment Inc. He released the albums “The Greatest Of Them All” (1992), “You Need Stitches: The Tuff City Sessions 1982-1988”, “Rare & Unreleased Old School Hip Hop 86-87” and “Mid Life Crisis” (2008).