Green Day formed in Rodeo, Calif., at the end of the '80s as a punk band with a knack for quick, catchy and bratty songs. With album titles like 'Kerplunk!' and 'Dookie,' they also quickly gathered a young male fan base that helped push their 1994 major-label debut 'Dookie' into a multi-platinum hit (it reached No. 2 and has sold more than 10 million copies since its release). A decade later, the band grew more serious and sophisticated on the concept album 'American Idiot,' which reached No. 1 and also went platinum several times over. The core trio of Billie Joe Armstrong, Mike Dirnt and Tre Cool returned in 2009 with another concept album, the Grammy-winning No. 1 '21st Century Breakdown.' They were inducted into the Rock and Roll Hall of Fame in 2015.