Katy Perry joined the Rolling Stones on stage for their '50 and Counting' tour in Las Vegas on Saturday night (11.05.13), singing a duet with Sir Mick Jagger to 'Beast of Burden'.
The 'Part Of Me' hitmaker took to the stage at MGM Grand Garden Arena with the legendary rockers as part of their '50 and Counting' tour, wowing the crowds with a duet alongside frontman Sir Mick Jagger to their track 'Beast of Burden' from hit record 'Some Girls'.
Shortly after the gig, an excited Katy took to her Twitter to share her delight with fans.
She posted: ''Yes, I just did gyrated on Mick Jagger. WHAT?! #Stones50 (sic)''
The band - made up of Mick, Keith Richards, Ronnie Wood and Charlie Watts - were also joined by their former member Mick Taylor and the quartet looked back on the night's antics with a series of tweets and photos.
One read: ''Tonight the Rolling Stones rocked Las Vegas! They were joined by Katy Perry for Beast Of Burden and Mick Taylor for Midnight Rambler and (I Can't Get No) Satisfaction #stones50 (sic)''
Katy's appearance follows a string of big names who have surprised the audience by turning up with the rockers.
Pop sensation Lady GaGa lent her vocals to 'Gimme Shelter' and 'Brown Sugar' during their show in Newark, New Jersey, last year, where Bruce Springsteen and The Black Keys also took to the stage to mark the end of the band's 2012 shows.