It's the Lip Sync Battle we've all been waiting for: Ellen DeGeneres vs. Jimmy Fallon.
Appearing on The Tonight Show Starring Jimmy Fallon, the funny-woman -- who was promoting the new season of her own show Ellen -- made her lip sync debut against her fellow comedian.
Jimmy's opening song, The Killer's Mr. Brightside, went toe-to-toe with the Diana Ross's classic hit, Do You Know Where You're Going To -- which Ellen tackled sitting down.
The Tonight Show host's counter-attack saw him bring out Silento's Watch Me (Whip Nae Nae) -- yes, he went there -- but it was Ellen who brought the house down with Rihanna's B**ch Better Have My Money.
While those efforts are hard to top, Jimmy also brought out old pal Justin Timberlake (who adjudicated the Lip Sync Battle) during the show for a the sixth instalment of audience favourite History of Rap.