Lena Dunham & Jimmy Fallon Duke It Out In 'Tonight Show' Lip Sync Battle

Lena Dunham and host Jimmy Fallon duke it out to tracks from QUEEN and Run-DMC in the latest lip sync battle on The Tonight Show. Bringing some killer moves to the stage, Lena Dunham gets don and dirty in the first round with some stellar choreography. Not surprisingly, Fallon counters by breaking out his awesome MC skills. Check out the clip below to see who wins this round. Stay tuned for more from The Tonight Show starring Jimmy Fallon.