In this exclusive clip from Green Day's new live album/DVD set Awesome As Fuck, the band and their fans turn their bombastic power ballad "21 Guns" into a stadium-sized sing along. It's a great performance, but the directing and editing really puts it over the top, showcasing the band's showmanship and the audiences' enthusiasm so effectively that it makes a Green Day gig look like the best rock show on earth – which, come to think of it, maybe it is?