May says Mercury's admission shocked him because they had just had 'great success' with 'biggest ever' tour. Queen's Knebworth Park gig, in Hertfordshire, was performed in front of enormous 120,000-strong crowd, as mailonline reports
At the time of the gig, which was performed in front of a sell-out 200,000-strong crowd at Knebworth Park, in Hertfordshire, May and Taylor were unaware that Mercury was suffering from AIDS, which there was no treatment for at the time.
'We had done the biggest tour ever of our lives and it was a great success and we were very happy. And Freddie said, "I can't do this anymore, after this." And we went, "oh",' May says.
Taylor adds: 'He was fairly firm at that point about the fact that he didn't want to do anymore live shows, which sort of told us that there was something wrong.'
The BBC programme also hears from others who were closest to Mercury, including his sister Kashmira Bulsara, long-time friend Anita Dobson and personal assistant Peter Freestone to recount their recollections of the singer's
Queen's Knebworth Park gig was the final date of the band's successful Magic Tour.
The stars performed greatest hits including 'One Vision', 'Radio Ga Ga', 'Crazy Little Thing Called Love,' 'We Will Rock You' and 'I Want To Break Free'.
In line with Mercury's wishes, the band did not perform live with Mercury after that.
Mr Freestone, who cared for Mercury at his Garden Lodge home in his final weeks, tells in Saturday's show how the singer refused any more drugs that would keep him alive.
'The only thing that he would take would be painkillers. And for those last two weeks, he slowly let go,' he says.
Despite persistent rumours about his state of health, the writer and performer of much-loved anthems including We Are The Champions and Bohemian Rhapsody did not confirm that he had AIDS until the day before his death.
.