During last night's Late Night, Jimmy Fallon donned a wig and a fake beard and added another impression to his collection—that of Idol's Casey Abrams. In the sketch, Fallon plays a desperate Abrams trying to cash in on his 15 minutes.

Did you see Casey Abrams slay Marvin Gaye's "I Heard It Through the Grapevine" on American Idol last night? Wasn't he rad? No? What are you trying to say? That Casey Abrams isn't that great of a singer? Wait, that's exactly what you're trying to say?