Watch Black Simon & Garfunkel Perform 'Uptown Funk' on 'Tonight Show' — billboard.com

Jimmy Fallon brought back "Black Simon and Garfunkel" -- a duo made up of Roots' guitarist Captain Kirk Douglas and drummer Questlove -- to take a crack at "Uptown Funk," which is currently sitting at No. 1 on the Billboard Hot 100. "Uptown Funk" is the lead single from Mark Ronson's Uptown Special, which came out this week in the U.S. Bruno Mars sings lead on the track, which draws heavily on the early '80s funk of groups like the Time and the Gap Band -- groove-heavy bands that unfortunately never reached the top of the Hot 100 themselves.

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