Bikini Kill is a feminist punk band that was based in Olympia, WA and Washington, DC, forming in 1990 and breaking up in 1997. Kathleen Hanna sang, Tobi Vail played drums, Billy Karren (a.k.a. Billy Boredom) played guitar and Kathi Wilcox played bass. Sometimes they switched instruments. Bikini Kill is credited with instigating the Riot Grrrl movement in the early 90’s via their political lyrics, zines and confrontational live show.