Queen played a 21-minute set at Live Aid at Wembley Stadium on 13 July 1985, a performance widely regarded as one of the greatest live shows ever. During a break between songs, Freddie Mercury led the audience in an improvised Ay-Oh vocal exchange that became the defining image of his showmanship. Clips of the moment have circulated for decades in documentaries, tributes and online edits, and were recreated for a new generation by the 2018 film Bohemian Rhapsody. The chant endures because it needs no context to feel triumphant.