Videos: Jimmy Fallon And Justin Timberlake Take Over <em>Saturday Night Live</em> For Christmas

"Shut up, mom!"

Paul McCartney sings a duet with Fallon.

It's the stars of CBS vs the cast of NBC.

Lil' Baby Aidy anchors the best sketch of the night.

Hey, it's the real Barry Gibb.

Mayor Bloomberg and Billie Jean King were the guests on Weekend Update.

"Kim flipped the script! Holiday bread became a building!"

Kate McKinnon has a killer Shakira impression.

Scooge is gay in the worst sketch of the night.

This charming sketch was one of the best of the night.

And in addition to appearing in every other sketch, Justin Timberlake also sang "Only When I Walk Away" and "Pair Of Wings."