21st Century Breakdown | Punk Ass Motherfucker

21st Century Breakdown is reportedly a punk rock album by the American punk rock band Green Day. The album spawned two hit singles, Know Your Enemy and 21 Guns. Butch Vig handled the album's production. Green Day's music is often associated with the punk rock genre. The album's influence can be heard in the music of a number of other bands and artists, including Blink-182 and Sum 41.