Katy Perry joins the Rolling Stones onstage
Singer Katy Perry sang with rock band Rolling Stones during their show in Las Vegas.
She performed a rendition of the band's song "Beast of burden" from their 1978 album "Some girl" in Las Vegas, reports dailystar.co.uk.
She tweeted: "Yes, I just did gyrated on Mick Jagger. WHAT?! (sic)."