The Circle Jerks are an American punk rock band which consists of vocalist Keith Morris and guitarist Greg Hetson (both since 1979) alongside bassist Zander Schloss (since 1983), and drummer Joey Castillo (since 2019).
The band was formed in Southern California in 1979, and originally comprised Morris, Hetson, Roger Rogerson on bass and Lucky Lehrer on drums.
The first Circle Jerks lineup released three albums (including their 1980 debut Group Sex), before Rogerson and Lehrer were kicked out of the band in 1983 and replaced by Earl Liberty and Chuck Biscuits respectively.
This lineup lasted only a year, and the Circle Jerks hired Zander Schloss and Keith Clark as Liberty and Biscuits' replacements.
Tensions among its members and failed attempts to record the follow-up to Oddities, Abnormalities and Curiosities resulted in the Circle Jerks breaking up yet again in 2011.