Katy Perry joined the Rolling Stones for their '50 and Counting' show in Las Vegas on Saturday (11.05.13), singing along to 'Beast of Burden'.
The 'Wide Awake' singer surprised crowds at the MGM Grand Garden Arena when she joined the legendary rockers for their '50 and Counting' show, singing a duet with frontman Sir Mick Jagger to their iconic track 'Beast of Burden'.
Katy, 28, was ecstatic following the performance and couldn't contain her excitement on Twitter.
The raven-haired beauty wrote: ''Yes, I just did gyrated on Mick Jagger. WHAT?! #Stones50 (sic)''.
She added: ''Thanks for letting me be the 5th wheel last night! @Rollingstones, (sic)''.
The quartet also posted a series of tweets accompanied by snapshots documenting their night.
One post 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)''.