Bikini Kill is an American punk rock band formed in Olympia, Washington, in October 1990. The group consists of singer and songwriter Kathleen Hanna, guitarist Billy Karren, bassist Kathi Wilcox, and drummer Tobi Vail. The band pioneered the riot grrrl movement, with radical feminist lyrics and fiery performances. Their music is characteristically abrasive and hardcore-influenced. After two full-length albums, several EPs and two compilations, they disbanded in 1997. The band reunited for tours in 2019 and 2020.