On The Tonight Show on Wednesday night, Jimmy Fallon shed light on Barack Obama's recent phone call with Vladimir Putin. What happened after the call, he claimed, was that Putin then called Sarah Palin, and his alleged "video proof" is absolutely hilarious. Jimmy Fallon, of course, assumes the role of Putin, but Sarah Palin herself is there in the flesh! The two make jokes about Palin's classic Russia line and the NSA and, of course, carve out a little time to perform a mini instrumental cover of Pharrell Williams's "Happy." Watch the video above!