What a special performance!
Florence + The Machine had the honor of opening for The Rolling Stones the other night in London, but it didn't stop there!
Singer Florence Welch also used the opportunity to join The Stones to help them perform one of their many classics!
Flo took the stage with the band to play "Wild Horses," turning the song into a very wonderful duet with Mick Jagger!
Watch video of the performance: