Katy doesn't know why she's there, either.
Each won four awards.
Eminem's 'Recovery' is the best-selling album since 2007.
Scarlett Johansson, Mark Ruffalo, Cher, and more in this month's roundup.
Perhaps Perry didn't appreciate his bid to land her a place on the tabloids' "Stars Without Makeup" lists.
Hear "Part of Me."
New and yet not.
Plus: Jens Lekman, Atlas Sound, Tricky, Justin Beiber, Dandy Warhols, Phoenix, Florence and the Machine, and Vampire Weekend.
Anything Gwyneth can do, she can do ... also.
Plus: Girl Talk, Usher, My Chemical Romance, Wu-Tang Clan, and more.
It's totally great.
It's her song, she can do what she wants to?
The pop star appears on the show, and it's pretty much a mess.
Perry's the popular girl, and Ke$ha's the ratty upstart, but I can't help thinking of them in terms of something larger.
No exploding bras, sadly.
Just one element of a steely, ruthlessly executed bubble-gum pop act.
She dominates the MTV Europe awards, as Justin Bieber defeats Kanye and Eminem.
Plus: Whoopi Goldberg no rocket scientist.
Breasts, meet fireworks.
"They have a chill chemistry."
We last saw the smeary-faced pop enthusiast covering Lady Gaga's "Telephone."
They've "always been known as a fun airline."
Martha Stewart, too.
C is for Controversy.
The letter of the day is B, for bosom.