Adam Gates (AKA Filthy Ape and Bob C. Cock) is a vocalist, guitarist, keyboardist, and composer from the San Francisco Bay Area. He was lead singer for The Spent Poets, who released a self-titled album and toured nationally in the early 1990s. Gates toured in 1996 with Les Claypool as guitarist for Holy Mackerel and appeared on Highball with the Devil. He has been a member of No Forcefield, which included Larry LaLonde and Bryan Mantia (also both of Primus).