The Stones hitmakers continued their 50 & Counting anniversary tour by headlining at Sin City's MGM Grand, and they thrilled fans with a special guest, reported MTV online.
Perry performed a rendition of the Stones' track 'Beast of Burden', from their 1978 album Some Girls, and posted on Twitter that she she got up close and personal with singer Mick Jagger.
"I'm much obliged and quite honoured. Yes, I just did gyrated on Mick Jagger... Thanks for letting me be the 5th wheel last night," Perry posted.