Billboard Cover: -The Biggest Event of My Career- (GALLERY)
CLICK HERE TO WATCH THE PHOTOSHOOT GALLERY If Katy is nervous, she doesn't show. She's already 108 shows deep into the Prismatic World...
Katy talks indirectly to a girl battling leukemia (VIDEO)
Eight year-old Madeline Guarraia is fighting a grueling second battle with leukemia and she is getting some attention from a pop star...
Check out ALL the interviews for the SuperBowl so far (VIDEOS)
With less than 20 days for the presentation, this week were released several interviews of Katy on the SuperBowl. Here you can find all...
