Anne Hathaway kicked ass performing "Wrecking Ball" by Miley Cyrus on 'Lip Sync Battle.'

If you haven't already heard of Lip Sync Battle, the most well-teased new show in the history of television, it's a program hosted by LL Cool J that pits celebrities against each other in a battle of the most important art form: lip syncing.

Yeah, you know how you've been watching these Lip Sync Battle videos for months now? The show premiered on Thursday.

In this week's episode, Anne Hathaway faces off against Emily Blunt, and flips her the bird.

She has really come a long way since Princess Diaries.

If you actually want to see the show (though why you wouldn't just wait for the viral videos is beyond us), it's on Thursdays at 10/9 Central on Spike.

Sources: 'Lip Sync Battle' on Spike