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Jennifer Aniston and Jimmy Fallon flip out in 'Tonight Show's' latest lip bit

Image: Jennifer Aniston and Jimmy Fallon
The Tonight Show Starring Jimmy / Today

It's a running gag on "The Tonight Show," but Lip Flip — the bit in which host Jimmy Fallon and his guest du jour swap mouths via video magic — never gets old.

Need proof? Just check out his latest swap with Jennifer Aniston.

With Fallon in charge of her voice, the former "Friends" star suddenly delivered a less-than-spot-on impression of Billy Bob Thornton, expressed a major interest in going to Bonnaroo and greeted the crowd with an incredibly enthusiastic "Yo, yo, yo, yo! What's up, dawgs?"

As for Fallon, Aniston had him musing about how, as a Seattle Seahawks fan, he's "got the Starbucks, got the Space Needle, got weed."

He's also got a lovely smile.

The Tonight Show Starring Jimmy / Today

Just watch the clip to see it all for yourself. And see more from Aniston when her buzzed-about drama, "Cake," opens in theaters Friday.

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