Watch Alison Brie 'Shoop' For A Shot At Lip Sync Supremacy

The "Mad Men" star will mouth off against Will Arnett in the midseason premiere of 'Lip Sync Battle.'

Here she goes, here she goes, here she goes again: Alison Brie will pick up the mic to lip sync a Salt-N-Pepa classic when she appears on "Lip Sync Battle" this week, and it's going to be amazing.

The teaser for Alison's performance shows her performing "Shoop" for a highly appreciative crowd, and a wholly intimidated Will Arnett, who cannot possibly top this, and he knows it. Even LL Cool J gets up to dance.

The two face off Thursday night, when "Lip Sync Battle" makes its midseason premiere on Spike.