Black Flag was one of America's first hardcore bands. They emerged from Southern California to gain international prominence, touring enough to become a major attraction in virtually every city where a scene existed and undoubtedly inspiring others to get in the game. Via the band's SST label, Black Flag played an essential role in the development and popularization of American punk. Through countless revolving-door personnel changes — which spawned numerous spin-off bands along the way — Black Flag persevered until 1986, finally dissolving after locating and exploring the zone where punk and heavy metal intersect and overlap.