Watch your back, Biebs.
KP, still hustling.
Let the healing begin.
It's official: Katy Perry likes fireworks more than bullets.
K'Ronikka isn't real, but Ke$ha is.
Darren Criss takes to the piano, and you can almost hear the hearts swelling (and the ovaries imploding).
After killing it on SNL, the tiny Swedish weirdo has officially pervaded the hearts and minds of millions.
Katy Perry is hosting SNL this week, but we thought Robyn was the musical guest? DAMON OUT, ROBYN IN!
Cold open: Alec Baldwin cameos as himself, playing Words With Friends and being attacked by a flight attendant.
Katy Perry is hosting SNL blah blah blah WHERE IS ROBYN???
"I think she can play Marilyn on the Broadway stage."
As in, she's not the musical guest.
Not everyone at Vulture is a Katy Perry fan, but it's hard to deny her genuine talent after this restrained, powerful performance.
They created a video mashup using Perry's "The One That Got Away" and footage of Michelle Williams in her Marilyn Monroe biopic.
Also: Diego Luna!
It's too true.
Nothing says "the heart of Mexico" quite like visiting a water park.
Katy Perry taking cues from Gallagher? Anything is possible.
It's not bad!
It's for the next episode of 'Glee.'
Perry and Russell Brand donned costume makeup to visit Knott's Scary Farm without being recognized.
Chinese websites are now banned from distributing some of their songs.
Beyoncé, Emma Stone, Rye Rye, and more, in the best of this month's celebrity magazine portraits.