They can do a lot more than merely judge a reality competition together.

At last night's American Music Awards, Adam Levine and Christina Aguilera anchored a rendition of their hit, "Moves Like Jagger," which had famous faces in the crowd up and dancing. Watch this duo belt out the track on stage now, as Jaden Smith, Selena Gomez, Taylor Swift and others groove to it while watching from the audience:

Posted in: Christina Aguilera

Give us Kelly Clarkson standing at a microphone, simply singing, and we'd be thrilled. The original American Idol possesses that kind of sheer talent.

But the artist took to the stage at last night's American Music Awards in a shiny, beautiful dress and was flanked by a series of brass instruments, along with back-up dancers that took their cue from the early 20th century musical Newsies.

Posted in: Kelly Clarkson

In a recent interview with W Magazine, Willow Smith says she can't do anything without her mother's permission.

Therefore, we'll direct this question at Jada Pinkett Smith: What the heck were you thinking letting your 10-year old daughter out of the house in this outfit?!?

Posted in: Willow Smith

Chart-topping friends Katy Perry and Rihanna both performed at Sunday's American Music Awards. Who will perform better in a test of style supremacy?

Katy looked adorable as ever on the red carpet, so much so that we can't help wonder if that dress may have helped salvage this rendition of "Firework."

Posted in: Celebrity Fashion

Considering Justin Bieber was named Artist of the Year, it's safe to say the American Music Awards skewed toward a younger generation last night.

But try telling that to Bon Jovi. The veteran band is releasing a Greatest Hits album this winter, replete with four new songs. It performed one of them at the ceremony over the weekend, transitioning from "What Do You Got?" to  ''You Give Love a Bad Name'' and ''It's My Life."

Posted in: Jon Bon Jovi