Anna Kendrick Enlists J.Lo to Beat John Krasinski in 'Lip Sync Battle'

Anna Kendrick got cheeky with John Krasinski in the latest round of Lip Sync Battle when she brought out Jennifer Lopez to help her perform Lopez's hit song “Booty.” John thought he earned the win when he pulled off a performance of Tina Turner’s “Proud Mary,” complete with a silver sequin-and-fringe dress and some killer dance moves. But even Krasinski’s nice man-gams were powerless against J.Lo’s cameo, which propelled Anna into the winner’s circle. Much like the viewers, Krasinski was completely in shock: “Wait, wait, wait. What is happening!?"

Related: ‘Lip Sync Battle’: The EP Answers All of Our Burning Questions

This may have been the most contentious battle since Anne Hathaway channeled Miley Cyrus in her showdown with Emily Blunt, whose performance of “No Diggity” was equally on fleek (as the kids say). 

Lip Sync Battle airs Thursdays at 10 p.m. on Spike.