Katy Perry

Katy Perry had the honor of performing at the White House last night (July 31) for 'A Celebration of Special Olympics and a Unified Generation.'

The redheaded royal made headlines this morning (July 1) for a heartwarming video that shows him dancing to Katy Perry's 'Firework' alongside children with disabilities in Chile. Watch the sweet video here.

Katy Perry has done it all — she’s released platinum albums, toured all over the world, debuted a big-screen movie and signature fragrance. Now, the pop star is taking on another side of the music biz with Metamorphosis Music, a joint venture record label with Capital Records.

Two minutes ago, I'd never heard of Rosenberg, Texas. Now, I have an unstoppable urge to speed through their town so I just might be pulled over by these hilarious cops from Rosenberg Police Department doing the best Katy Perry "Dark Horse" lip dub ever. EVER.

Katy Perry joined the festivities at the 2014 Billboard Music Awards all the way from the Newcastle Metro Radio Arena in England, where she put on a neon-packed performance of her latest single, ‘Birthday.’

We love the fierce determination at the root of Katy Perry's 2013 hit, 'Roar,' but the song tugged at our heartstrings in an entirely different way when covered by a five-year-old cancer patient.

This might be the sweetest video we have seen all week! 5-year-old Kai Langer, aka the most adorable little kid on the planet, stopped by the 'Ellen DeGeneres Show' to chat with the host and show off his rendition of Katy Perry's anthem, 'Roar.'

Has Katy Perry moved on to another man already?

Katy Perry has finally and officially confirmed what the world knows and is painfully obvious -- that she and BF John Mayer have split.

Katy Perry is no stranger to adopting hysterical personas for her music videos (remember Kathy Beth Terry from 'Last Friday Night'?), but she has gone all out in the vid for her latest single, 'Birthday.' While the lyric video was sugary sweet, this video is anything but, featuring Perry as five different party personalities all pranking a wide range of birthday parties.

Pop and country are colliding not just on Taylor Swift albums, but at the taping of the 'CMT Crossroads' Katy Perry x Kacey Musgraves special. Get a sneak peek at some pics and some video from the performance.

Katy Perry didn't attend the 2014 Kids' Choice Awards this year, but she did hint that she planned to dye her hair slime green, which is the show's signature prank and color. She wasn’t kidding. The singer has gone green, and the hair hue is perfect for spring.