Bad Religion is a punk rock band that formed in Los Angeles, California in 1980. The band makes extensive use of soaring 3-part vocal harmonies (which they refer to in their album liner notes as the "oozin' aahs"), guitar solos and lyrics that often contain religious and political commentary. Their lyrics often relate to matters of social responsibility. The band's lineup has changed several times over its lifespan, with lead vocalist Greg Graffin being the only consistent member; the current lineup, however, features three of the band's four original members (Graffin, Brett Gurewitz and Jay Bentley). As of 2015, Bad Religion has released sixteen studio albums, two live albums, three compilation albums, three EPs (one of which is composed of covers of Christmas songs), and two DVDs (which were both recorded live). Although they had gained a cult following with many of their early albums, including Suffer (1988) and its follow-ups No Control (1989), Against the Grain (1990) and Generator (1992), Bad Religion did not experience major worldwide commercial success until the 1994 release of their eighth studio album Stranger Than Fiction, which spawned their biggest hits "Infected" and a re-recorded version of "21st Century (Digital Boy)", and was certified gold in both the United States and Canada. Their latest album, True North, was released on January 22, 2013. Bad Religion is expected to release a new album in 2016, which will be their first with Mike Dimkich, who replaced longtime guitarist Greg Hetson in 2013. Bad Religion is one of the best-selling punk rock acts of all time, having sold over 5 million albums worldwide.