Screeching Weasel is an American punk rock band consisting of Ben Weasel (vocals), Mike Kennerty (guitar), Mike Hunchback (guitar), Zach "Poutine" Brandner (bass) and Pierre Marche (drums). Screeching Weasel is originally from the Chicago suburb of Prospect Heights, Illinois. The band was formed in 1986 by Ben Weasel and John Jughead. Since their formation, Screeching Weasel have reformed several times with lineup changes. Ben Weasel has been the only constant member, though Jughead was present in every incarnation of the band until 2009. Other prominent members include guitarist/bassist Dan Vapid and drummer Dan Panic, who have each appeared on six of the band's studio albums, and Green Day bassist Mike Dirnt who appeared on one.

Operation Ivy was an American punk rock band from Berkeley, California, formed in May 1987. They were critical to the emergence of Lookout Records and the so-called "East Bay Sound."