British pop acts including George Michael, Bono, Paul McCartney, Freddie Mercury and David Bowie gather on stage for the finale of the Live Aid concert at Wembley Stadium in London, on July 13, 1985. Getty Images
The huge crowd at Wembley Stadium. Getty Images
Freddie Mercury leads his band Queen on stage at Wembley, in a set that was later faithfully recreated in the film Bohemian Rhapsody. Getty Images
Former Beatle Paul McCartney salutes the audience. Getty Images
Princess Diana and Prince Charles arrive for the start of the concert. Getty Images
The finale of the Live Aid concert in London. All of the stars joined together on stage to sing 'Do They Know It's Christmas?' Getty Images
Madonna performs in the Live Aid concert at the John F Kennedy Stadium in Philadelphia, which took place simultaneously with the London concert. Getty Images
Mick Jagger and Tina Turner sing together. Getty Images
David Bowie performs. Getty Images
Led Zeppelin bandmates, singer Robert Plant, left, and guitarist Jimmy Page, perform in Philadelphia. AP