Premise: Songs of Innocence is the thirteenth studio album by Irish rock band U2 . The Joshua Tree is the fifth studio album by Irish rock band U2 . U2 . Topping music charts around the world , it produced their only number-one singles in the US , `` With or Without You '' and `` I Still Have n't Found What I 'm Looking For '' . `` With or Without You '' is a song by Irish rock band U2 .
Hypothesis: U2 is a rock band.
Label: ENTAILMENT