Gary Reed (born December 28, 1972), also known as Mastamind, is an American rapper from Detroit. A founding member of Natas, he was formerly signed with Reel Life Productions before forming his own label, Toxsic Records.
While attending Osborne High School, Mastamind passed a three-song demo to fellow student, Esham, who had released the album Boomin’ Words from Hell and multiple EPs on his Reel Life Productions label. Esham liked the demo, and decided to form a group with Mastamind and a friend, T-N-T. The trio named the group Natas, an acronym for “Nation Ahead of Time And Space”.