Green Day’s 2004 epic punk-rock opera, American Idiot, debuted at No. 1 on the Billboard chart, spawned five hit singles, went on to sell more than 12 million copies worldwide, and netted the trio two Grammys. Their latest album, 21st Century Breakdown, has been called even more ambitious than their last, and tells the story of a young couple making their way through the mess and promise of the century so far. Upon its release, the album hit #1 in 14 different countries, achieving gold or platinum in each.