Bringing the politically charged sound of hardcore to the mainstream, Anti-Flag are one of the most-beloved American punk bands of the last 20 years. Inspired by acts like The Exploited and Crass, the band released three furious albums between 1996 and 2001, but it was 2003's The Terror State (produced by Rage Against The Machine's Tom Morello) that finally broke them to a wider audience, thanks to a catchier but no less intense sound. While their protest songs may have gotten more melodic through the years, the band's commitment to punk rock ideals has never wavered.