Primus is a San Francisco-based alternative rock band formed in the mid-1980s by bassist Les Claypool and guitarist Todd Huth. Les (vocals and bass guitar) has been the only constant member. They have had two guitar players (although Larry has held onto the role for the past 30 years) and many different drummers (although Tim Alexander, Bryan Mantia and Jay Lane were the only ones who recorded with the band) in the past. Their music has proven difficult to define; while usually considered by critics to be funk metal or alternative metal