"A few days after the album [Songs of Innocence] was finished, I thought Iris shouldn't be part of the album. Even though the song is a beautiful tune and everything, I just thought it was going a bit far and it's not very punk rock, singing about your mother."
did you know
U2 hold the record for the most powerful live sound system of all time. It used over a million watts - capable of killing someone if turned up to full.