Premise: Adam Charles Clayton ( born 13 March 1960 ) is an Irish musician , best known as the bass guitarist of the rock band U2 . U2 . The group consists of Bono ( lead vocals and rhythm guitar ) , the Edge ( lead guitar , keyboards , and backing vocals ) , Adam Clayton ( bass guitar ) , and Larry Mullen Jr. ( drums and percussion ) .
Hypothesis: U2 is a rock band.
Label: ENTAILMENT