Neil Joseph Stephen Fraser known by his stage-name Mad Professor, is a British dub music producer, engineer and remixer. He has collaborated with reggae artists Lee Scratch Perry, Sly and Robbie, Pato Banton, Jah Shaka and Horace Andy, as well as artists outside the realm of traditional reggae and dub, such as Sade, Massive Attack, The Orb, Gaudi, the Brazilian DJ Marcelinho da Lua, Grace Jones, and Perry Farrell.