Calling it the "most insane thing she's ever done," KATY PERRY is set to release her latest video, BIRTHDAY, this Thursday... and she's been giving fans sneak-peeks at what promises to be some video gold from pop's superstar! 






Finally... Katy's appearance on JIMMY KIMMEL was pretty spectacular... when she played against a superfan for the chance to win some spectacular Katy Perry prizes and more! 



Katy Perry, single, probably involved with Diplo, and touring the world this summer. Coming soon to a AEG LIVE venue near you.