Anna Kendrick's Booty vs. John Krasinski's Proud Mary | Lip Sync Battle

Anna Kendrick ("Pitch Perfect") and John Krasinski ("The Office") bring their battle to an epic conclusion. How does Krasinski's take on Tina Turner's classic version of Proud Mary stand next to Anna's surprise-filled performance of Jennifer Lopez's Booty? Find out now! Each week, A-list celebrities go toe to toe, syncing contemporary hits and classic tracks, all for the ultimate bragging rights: the title of Lip Sync Battle Champion. Hosted by LL Cool J and Chrissy Teigen. Follow Lip Sync Battle!