On April 20th, 1992, about five months after Freddie Mercury passed away due to AIDS-related pneumonia, the surviving members of Queen came together at Wembley Stadium to stage an amazing concert in his honor featuring Elton John, Axl Rose, Slash, Robert Plant, George Michael, Seal, Annie Lennox and Liza Minnelli….

Source: RollingStone
Link: Flashback: David Bowie Reunites With Mick Ronson in 1992