Brad Paisley took a pause from his Beat This Summer Tour to hit up 'Late Night WIth Jimmy Fallon,' where he teamed up with the funnyman for a duet of the "protest song" called 'Balls in Your Mouth.' Trust us -- it's not what you think!
In honor of the U.S. Open, Jimmy Fallon mimicked pro Roger Federer in a skit called “At the Bar With Roger Federer” on ‘Late Night.’