Watch the 2011 American Music Awards Performances! (VIDEO)

Nicki Minaj, Katy Perry, Justin Bieber... just about everyone took the stage at The American Music Awards to perform their latest single. Really, with this many performances it's kind of amazing they even managed to give out any awards.

Bieber was there to sing a song off of his Christmas album, "Mistletoe," which Bieber released the music video for more than a month ago. Who releases a Christmas song in October? Those crazy Canadians.

Other performers included Chris Brown, who had a little tantrum on Twitter the other day, yelling at his "haters" for getting on his case about that whole beating Rihanna until her face was swollen and bruised thing, which he said was "almost three f***ing years ago" so everybody should just forget about it.

In other news, Chris Brown is living in a fantasy world where you can beat your girlfriend and everyone will just forget about it.

"American Idol" faced off with "The Voice" as well, as Jennifer Lopez performed a couple of her songs and Maroon 5 performed "Moves Like Jagger" with Christina Aguilera.

Check out the biggest and best of the performances below. Which one was your favorite?

David Guetta & Nicki Minaj — ”Turn Me On” / “Super Bass”

Justin Bieber — ”Mistletoe”

Chris Brown — ”All Back” / “Say It With Me”

Kelly Clarkson — ”Mr. Know It All”

Jennifer Lopez — ”Papi” / “On The Floor”

Katy Perry — ”The One That Got Away”

Maroon 5 & Christina Aguilera — ”Moves Like Jagger”

LMFAO — ”Party Rock Anthem” / “Sexy And I Know It”