Last night, "Lip Sync Battle" was back on and pitted Alison Brie against Will Arnett. The two comedians duked it out in two highly entertaining rounds.

Arnett kicked the battle off with the Baha Men's classic song, "Who Let the Dogs Out?." Dressed in a purple track suit, sunglasses, and as host LL Cool J put it "trying to answer the immortal question, 'Who Let the Dogs Out?,'" Arnett danced around the stage and oozed charisma.

"Obviously I move like a gazelle. That was important," Arnett joked after the performance.

Up next was Brie's incredible take on Salt-N-Pepa's 1993 hit "Shoop." Brie nailed every line of the song as she trotted up and down the stage. The "Community" star totally killed it. Take notes, Arnett.

While the first round was more of a close call, Brie destroyed Arnett with her version of Jessie J's "Bang Bang." Arnett made a solid effort preforming the "Lego Movie" smash, "Everything is Awesome," complete with life size lego's and a construction uniform.

Brie responded by coming out with a 1930's style gangster uniform, complete with a fake machine gun, as she rolled through the hit song, which also features Ariana Grande and Nicki Minaj. Solid effort Arnett, but bow down queen Brie.