Bad Religion is an American punk rock band that formed in Los Angeles, California, in 1980. The band is noted for their erudite lyrics, which span topics such as religion, philosophy, science, contemporary politics, society, the media, substance abuse, mental disorder, freedom and human rights. Musically, they are noted for their melodic sensibilities and extensive use of three-part vocal harmonies. The band has experienced multiple line-up changes, with singer Greg Graffin being the band’s only constant member, though fellow founding members Jay Bentley and Brett Gurewitz have since rejoined, and guitarist Brian Baker has performed with the group since 1994. The most recent additions to the band are guitarist Mike Dimkich and drummer Jamie Miller, who joined in 2013 and 2015 respectively.