From just a brief clip of the upcoming duel, we can tell that
Batman Arnett is bringing his best Lego-robot moves for his performance of "Everything Is Awesome." Take a look at the number (which is definitely not his Lego character's trademark dark and brooding).
But Brie isn't going down without a fight, take a look at a snippet of her performance of Salt-N-Pepa's "Shoop."
Lip Sync Battle returns Thursday at 10/9c on Spike.