The Rolling Stones have dropped a few hints about possible guests for their upcoming tour dates. Their 50th anniversary run last year included guest spots from Lady Gaga, Bruce Springsteen and Florence Welch - and now Keith Richards says they're likely to invite more friends on stage.
"I have a feeling there's more openness about playing it the same way," Richards told NME. "I can't name names or make promises, but that area of the show is open."
Mick Jagger also opened up about the run, saying that they're not opposed to staying on the road if things go well.
"Normally when you announce a tour like this, you announce part of it, you leave it to be, you see what happens, you might do a date here and another date there," he said. "You don't want to be completely hand fast, so you do leave some dates in between. So we'll see what happens."
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