HOT TOPICS/

 Katy Perry

ESC: Katy Perry
How to Get Celeb Holiday Looks for Less
John Mayer, Watch What Happens Live
The Weeknd, Katy Perry
The Weeknd, Katy Perry
Alessandra Ambrosio, Victoria's Secret Fashion Show Runway
Ryan Seacrest Talks "American Idol" and Kylie Jenner
Why Katy Perry Didn't Watch Taylor Swift's Music Video
Victoria's Secret
Katy Perry, Gwen Stefani, No Doubt
Katy Perry, Disneyland
Kim Kardashian, North West, Katy Perry
Would Gwen Stefani Join "American Idol"?
American Idol, Katy Perry, Ryan Seacrest
Niall Horan, Katy Perry
Katy Perry Explains Why She Ended Feud With Calvin Harris
Katy Perry, wedding crasher
Julia Louis-Dreyfus, Tony Hale, Timothy Simons