Green Day: Green Day. Soundtrack: Shoot 'Em Up. Green Day is an American punk rock band formed in 1987 by lead vocalist and guitarist Billie Joe Armstrong and bassist Mike Dirnt. For much of the band's career, they have been a trio with drummer Tré Cool, who replaced John Kiffmeyer in 1990 prior to the recording of the band's second studio album, Kerplunk (1991). Green Day has sold more than 85 million...
