Formed in 1987, Green Day is a rock band consisting of the always entertaining Billie Joe on vocals and guitar, funky Mike Dirnt on bass guitar, and, of course, Tré Cool on drums. The band has sold over 22 million records in the United States, won three Grammy Awards; Best Alternative Album for Dookie, Best Rock Album for American Idiot, and Record of the Year for “Boulevard of Broken Dreams”.