President Obama isn't the only one who has Carly Rae Jepsen fever -- Jimmy Fallon and The Roots are in on it too.

So when the Canadian pop sensation stopped by "Late Night with Jimmy Fallon" Thursday night, she didn't give the typical stage performance. She sat down with the guys, a camera, and a ton of toy instruments to sing a much cuter, acoustic version of her hit "Call Me Maybe" than you'd ever hear on the radio.

We're still trying to figure out what's better, Fallon on the tambourine, or Questlove on kazoo.

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