Ellen DeGeneres Faces Off Against Jimmy Fallon in Legendary 'Lip Sync Battle'

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What do you get when Jimmy Fallon and Ellen DeGeneres go head-to-head in a Lip Sync Battle where Justin Timberlake is the judge? One of the best Battles in the history of The Tonight Show.

On Wednesday, after Jimmy and Justin busted out the epic sixth installment in their "History of Rap" segment, Ellen came out to show off her lip sync skills, and in a word it was amazing.

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Jimmy kicked things off with an incredible performance of The Killers' "Mr. Brightside," but Ellen countered his up-tempo choice with the hilariously downbeat "Do You Know Where You're Going To" by Diana Ross.

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Sitting cross-legged with deep, soulful lighting, Ellen's emotional lip-syncing will go down as one of the funniest, weirdest performances ever.

Jimmy tried to win back the crowd -- and his buddy Justin's vote -- with the contemporary choice "Watch Me," by Silento. And, for a minute, it seemed like he might have had a chance.

But then Ellen came out swinging with Rihanna's "Bitch Better Have My Money," and it was just jaw-dropping.

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Whatever was Justin to do? After all, his bestie Jimmy was going up against his other BFF Ellen. It must have been a tough call! Just kidding. Anybody with eyes knew Ellen ran away with the win.

Jimmy didn't hold Justin's decision against him, obviously. After the taping of the show, Jimmy and Justin went to watch a U.S. Open match where the stole the spotlight by dancing to Beyonce in the stands. It was pretty magical.

WATCH: Ellen Scares Jimmy Fallon -- TWICE!

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