U2 is a band.
How to Dismantle an Atomic Bomb is the eleventh studio album by Irish rock band U2 . `` Sunday Bloody Sunday '' is a song by Irish rock band U2 . The Joshua Tree is the fifth studio album by Irish rock band U2 . U2 . The band formed at Mount Temple Comprehensive School in 1976 when the members were teenagers with limited musical proficiency . `` With or Without You '' is a song by Irish rock band U2 .