Green Day

Green Day is an American punk rock band formed in 1987. The band consists of lead vocalist and guitarist Billie Joe Armstrong, bassist and backing vocalist Mike Dirnt, and drummer Tré Cool. Cool replaced former drummer John Kiffmeyer in 1991, prior to the recording of the band's second album, Kerplunk, and has been a member of the band ever since.
Green Day was originally part of the punk scene at 924 Gilman Street in Berkeley, California. The band's early releases for independent record label Lookout! Records earned it a grassroots fanbase.