Berris Simpson, known professionally as Prince Hammer, is a Jamaican reggae deejay, singer, and record producer born at the Jubilee Hospital in Kingston, Jamaica. He began his music career in the early 1970s by deejaying on the Vee-Jay sound system. Simpson initially recorded under his own name, working with producer Glen Brown to release the singles “Whole Lot of Sugar” and “Tel Aviv Rock”. He later adopted his stage name and produced his own recordings on his labels, Gold Cup and Belva, which were sold through his record shop on Orange Street. His breakthrough came with his 1978 album, Bible, released on Virgin Records' Front Line label. His subsequent releases include Roots Me Roots (1979) and Dancehall Style (1981). As a producer, he released Rod Taylor's debut album, If Jah Should Come Now (1979). He toured with various artists, including Prince Far I, and performed with punk rock bands such as The Clash and The Slits, as well as avant-garde trumpeter Don Cherry. His early recordings are compiled on the album Rastafari Bible 1976–1982 (2000).