The Global Citizen Vax Live event took place in LA on Sunday, with Prince Harry making a solo appearance, and Foo Fighters turning the show into their personal rock concert.The show - which will air on 8 May - saw Jennifer Lopez perform two songs, Ain't Your Mama and a cover of Sweet Caroline with a surprise appearance by her mom, who used to sing the song to her when she was a baby.RELATED: Prince Harry attends concert without Meghan Markle in first appearance since Prince Philip's funeral JLo