On the Wembley DVD, during the interviews when they're talking about the standards of playing at Wembley, Roger says he's "seen people die there". Which artists do you think he's referring to?
Possibly Ronnie Wood and Keith Richards, who were inexplicably invited by Dylan to be part of his backing band for Live Aid. They performed under the influence and nearly dragged his performance to the ground. But I'm sure there were numerous others who wilted on England's biggest stage.
Bob Dylan didn't play at Wembley during Live Aid he was in Philly!!
Didn't Rod Stewart play there a few weeks before Queen and wasn't the place half empty?