Green Day was originally part of the punk rock scene at 924 Gilman Street in Berkeley, California. Their early releases for independent label Lookout! Records earned them a grassroots fanbase, some of whom felt alienated when the band signed to a major label. Nevertheless, their major label debut Dookie became a breakout success in 1994 and eventually sold over 10 million copies in the U.S. alone.[1] As a result, Green Day was widely credited, along with fellow California punk bands The Offspring and Rancid, with reviving mainstream interest in and popularizing punk music in the United States.[2][3] Green Day's immediate follow-up albums didn't achieve the massive success of Dookie, but they were still successful. Their 2004 rock opera American Idiot reignited the band's popularity, selling 5 million copies in the U.S