Vocalist Keith Morris was an original member of Black Flag, co-founding the band with Greg Ginn and recording the Nervous Breakdown EP with them before departing the group in 1979.

Keith formed Circle Jerks along with guitarist Greg Hetson, bassist Roger Rogerson and drummer Lucky Lehrer. Their debut album, Group Sex was released in 1980. Group Sex has 14 songs that total out at 15 minutes. That same year, the group was one of several California punk bands to be immortalized in the documentary The Decline of Western Civilization; live versions of five songs from Group Sex appear on the movie's soundtrack.

The Circle Jerks dissolved around 1989. Hetson left the band to release a number of albums with Bad Religion. Live recordings made during what would be their final tour at the time were immortalized in the live album Gig in 1992, their third and last release for Relativity. More recently, the Circle Jerks have been featured on a television commercial for XM Satellite Radio. They are the first band played in the commercial and the song is "Operation" from the album Group Sex.

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