Pharrell Williams and Jimmy Fallon [1] brought the funk during The Tonight Show [2] on Wednesday. The pair performed a medley of hilarious hits as a fictional '80s R&B duo called Afro & Deziak, crooning "Girl, I'm Gonna Get You in the Mood" and "Girl, I'm Gonna Give You What I Got" while wearing horrible wigs and lamé jackets. This is just the latest in a string of funny singing videos from Jimmy, who is gearing up for the big premiere of Lip Sync Battle; the host will go up against Dwayne "The Rock" Johnson [3] in the show's first episode, which airs April 2. Watch the video above now, and check out more viral videos here [4].