Jagger tells Rolling Stone: "He used to copy me sometimes, but he'd be very honest about it. If he took one of your moves he'd say, 'That's one of yours - I just tried it.'

"He'd always look at my clothes labels. When he would see me, he'd give me a hug, and I could feel him going up behind the collar of my shirt to see what I was wearing. I didn't mind sharing things with him because he'd share so much with me. It was a two-way street."

Jagger says it's "really stupid when you think about it" that the pair's 1985 charity cover of Dancing In The Street was the only time they properly collaborated, adding: "We enjoyed camping it up. The video is hilarious to watch.