Smith and Fallon started out creating their own beats using an iPad app, only to later perform the 1988 rap "It Takes Two" by Rob Base and DJ E-Z Rock.
Smith was so into the song that he and Fallon stood up and got the audience involved. "I wanna rock right now! Sing!" the Focus star screamed out to the crowd.
It was clear the rapper-turned-actor, a.k.a. "Big Willy", has been missing the music game as he hasn't recorded anything new since 2005.
If they weren't already, after this performance Fallon and Smith are definitely "known on the microphone."