Cooper, who is currently starring on Broadway in The Elephant Man and the Clint Eastwood film, American Sniper, took the 30 Rock stage to show off his air guitar skills.

Yes, Cooper can play a pretty mean air guitar. Chalk it up to having a lot of time on his hands as a kid. Cooper even got the guitar face to prove it. Seriously, John Mayer, watch out.

Cooper, wearing a visor, complete with a red afro hair piece--a gift from Fallon in honor of his 40th b'day, which he celebrated yesterday--channeled Neil Young for an air guitar solo to "Down By The River."