Katy Perry: "It's Time For Me To Go The F**k Away"
K-Pez has vowed to take time out once film Part Of Me is released...
While Katy may be planning to step out of the showbiz spotlight, she still had time to party with her celeb pals Selena Gomezafter the premiere of her flick.
UsMagazine.com claims the foursome attended the opening of David Arquette's new nightclub, Bootsy Bellows, as well as hitting Chateau Marmont in LA for the Part Of Me after party.
A source told the website: "Rob and Katy are good friends so he was happy to celebrate with her, it wasn't just the four of them, but everyone was close.
"He's just checking in on her. It's not romantic at all. They're friends."