He also rocked out immensely, showing off his air guitar chops by strumming along to the lengthy guitar solo in Neil Young's "Down By The River". Cooper's many things - a great actor, writer and producer - and it turns out that he's also a proficient air guitarist, after honing his skills as a child.

He performs across the stage, and in the audience, with Fallon and house band The Roots in awe.

See if you can follow along with his razor-sharp moves.