Date 27/07/2015 - News People
U2's ongoing Innocence + Experience Tour has featured unannounced guest appearances by everyone from Jimmy Fallon and the Roots to an Elvis impersonator and U2 cover band. But Sunday night at Madison Square Garden, the biggest star yet came onstage when Lady Gaga joined them for "Ordinary Love." Rumors of her appearance spread across Twitter hours before showtime, but ripples of shock still shot through Madison Square Garden when Bono asked if there was a piano player in the audience and Gaga, wearing what could be best described as underwear, walked onstage.
