Watch GREEN DAY'S 21 GUNS video here. Our favorite punks from the Bay Area are never short on firepower in this clip that also features some serious lip-locking. By the way, we just love the way Billie Joe curls his lip! (a little like Elvis, maybe?). 21 Guns directed by Marc Webb, who has filmed clips for such artists as My Chemical Romance, Weezer, and All-American Rejects.