Starpulse — Katy Perry joined The Rolling Stones on stage at the MGM Grand in Las Vegas Saturday night for a duet with singer Mick Jagger on the band's classic, "Beast Of Burden." The pop singer was thrilled ... more info

E! Online — Can't always get what you want…but Katy Perry sure did at the Rolling Stones concert in Las Vegas Saturday night! Yep, the 28-year-old pop star hopped on stage with Mick Jagger... more info

411 Mania — Katy joins the band for "Beast of Burden"... more info

Topix — Katy Perry is the latest pop star to join The Rolling Stones for a surprise set during their tour. more info

Jam! Showbiz Music, Canada — Katy Perry brought a little pop to The Rolling Stones' show on Saturday night by joining them onstage in Las Vegas. more info

Starpulse — Katy Perry brought a little pop to The Rolling Stones' show on Saturday night by joining them onstage in Las Vegas. The Brown Sugar hitmakers continued their 50 & Counting anniversary tour by head... more info

Big Apple Music Scene — John kicked off the competition with a little "Teenage Dream" by Katy Perry, followed it up with Run DMC's "Peter Piper" and ended it with the ultimate middle school slow dance song, "I'll Make Love To You" by Boyz II Men. More »It Only Takes One Lat... more info

Starpulse — It was a who's who of celebrities at the "PUNK: Chaos to Couture" Costume Institute Gala at The Metropolitan in New York City on Monday night. more info

Dlisted — If your eyeballs haven't turned into stone balls from staring deep into Sarah Jessica Parker's crotch ("I haven't even stared at the Crotch of Sauron" - Matthew Broderick), then slow clap for her Iggy Pop-looking ass, because she took ... more info

Starpulse — Katy Perry's preacher father Keith Hudson references his daughter's fame during his Sunday sermons -- referring to her as the "devil child." The pop star's father also claims that he ends up cryin... more info