Premise: Green Day . For much of the group 's career , the band has been a trio with drummer Tré Cool , who replaced former drummer John Kiffmeyer in 1990 prior to the recording of the band 's second studio album , Kerplunk ( 1991 ) . In 1994 , its major label debut Dookie ( released through Reprise Records ) became a breakout success and eventually shipped over 10 million copies in the U.S. Green Day was widely credited , alongside fellow California punk bands Sublime , Bad Religion , The Offspring , and Rancid , with popularizing and reviving mainstream interest in punk rock in the United States .
Hypothesis: Green Day is not a music group.
Label: CONTRADICTION