British songstress Florence Welch gave rock god Sir Mick Jagger "a run for his money" when she took to the stage to perform alongside him recently.

The Florence + the Machine singer teamed up with The Rolling Stones to sing 'Gimme Shelter' at the second of their '50 and Counting' shows in London at the end of November.

Guitarist Keith Richards was impressed by the red-headed star's onstage presence.

He explained to NME magazine: ''I'd never met her before or seen her work, but I just went, 'Wow, there's a strong voice.' And, as it turned out, she's a hell of a performer. I mean, she gave Mick a run for his money. And she can move. Great fun, lovely girl, we'd do it again.''

The legendary band will also be joined by the likes of Lady Gaga and Bruce Springsteen when they play again this month, and Richards is proud of the interest the string of shows are gathering.

He said: ''Anything's possible now. This whole thing just seems to be gathering momentum again. So, at the moment, we've got these shows, and then you're into New Year, and I guess everybody's... Well, without saying anything, everybody's thinking.''

The Rolling Stones are currently celebrating an impressive 50 years in the music industry with the release of compilation album GRRR!