Justin Bieber Performs ‘Under the Mistletoe’ at AMAs (PHOTOS)

Justin, Selena at AMAs
Bieber and Gomez stun at American Music Awards.
As if seeing Justin Bieber with movie star hair earlier in the evening wasn’t enough, anyone watching the 2011 American Music Awards was also treated to a little holiday love from the Biebs.

Bieber belted out his hit Christmas song “Under the Mistletoe” — the lead-off single from his Christmas-inspired album Mistletoe, which recently topped the charts after its first week on sale. Bieber’s performance was mostly subdued by Bieber standards — dancing was minimal, theatrics were sparse and Justin focused on simply singing the song.

Bieber arrived to the AMAs with girlfriend Selena Gomez, who looked absolutely stunning in a gold dress that turned out to be entirely backless.