U2's first tour of America, launched at The Ritz club in New York on December 6, 1980, was an intense and fraught undertaking, not least on the night where guitarist The Edge punched vocalist Bono in the face.
In the band's 2006 autobiography, U2 by U2, the quartet reflected upon the tour, with Bono recalling, “Every night had to be the best night. We were the furthest you could find from chilled-out. It was very combative, sometimes with the audience, and sometimes between us.”
