Queen performed at the Live Aid concert in 1985. The benefit event took place on 13 July 1985, with Queen appearing at Wembley Stadium in London during the British portion of the globally televised concert.
Queen’s 21-minute set opened with part of “Bohemian Rhapsody” and continued with “Radio Ga Ga,” “Hammer to Fall,” “Crazy Little Thing Called Love,” “We Will Rock You,” and “We Are the Champions.” Freddie Mercury’s call-and-response with the Wembley audience became one of the performance’s defining moments.
Live Aid was organised by Bob Geldof and Midge Ure to raise money for famine relief in Ethiopia. It was staged simultaneously at Wembley Stadium and John F. Kennedy Stadium in Philadelphia, combining live performances with a huge international television audience. Queen’s appearance later became widely regarded as one of the concert’s highlights.
A common mix-up is confusing Live Aid with Queen’s other major 1980s festival appearances, including Rock in Rio in January 1985. The Live Aid date is firmly 1985, making that the only fair answer here.