Will Ferrell, Chad Smith Have Epic Drum-Off on 'The Tonight Show' (Video)

Will Ferrell and Red Hot Chili Peppers drummer Chad Smith -- who bear a striking resemblance to each other -- appeared on The Tonight Show Thursday wearing identical outfits, complete with matching earrings and KISS T-shirts. Throughout their sit-down with Jimmy Fallon, they each pretended to be the other person as they explained their supposed beef. "I was jammin' with the Chili Peppers in our jam house," Ferrell-as-Smith said about what he was doing when he supposedly heard his look-alike talking smack about him recently.

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Then the two resumed their real identities and sat down to a drum-off. "That was cute -- do you play for the Lukewarm Chili Peppers?" Ferrell quipped after Smith delivered an epic solo. The bit concluded with Ferrell busting out a cowbell to reprise his character in the iconic "needs more cowbell" sketch from Saturday Night Live, with the other members of RHCP joining in for a cover version of "(Don't Fear) the Reaper."

On Late Night, Hugh Jackman told Seth Meyers about a game he and the cast of X-Men: Days of Future Past played on set. It involved punching -- and he said Jennifer Lawrence insisted he hit her as hard as anyone else.

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"It was a very awkward moment. How hard do you hit a woman who is one of the biggest movie stars in the world?" he asked.