VIDEO: Meghan Trainor, John Oliver, Shaq Sing 'Since U Been Gone' on THE TONIGHT SHOW

Jimmy Fallon challenges Tonight Show guests Kelly Clarkson, John Oliver, Rachel Brosnahan, Mumford & Sons, Meghan Trainor, Anthony Anderson and The Roots to sing Kelly's hard-to-croon hit "Since U Been Gone."

Watch the video!

As of Feb. 17, 2014, "The Tonight Show" returned to its New York origins as "The Tonight Show Starring Jimmy Fallon" made its broadcast debut from Studio 6B in Rockefeller Center. Emmy Award- and Grammy Award-winning comedian Jimmy Fallon brings a high-tempo energy to the storied NBC franchise with his welcoming interview style, love of audience participation, spot-on impersonations and innovative sketches.

An American television institution for over 60 years, "The Tonight Show" continues to be a home to big-name celebrity guests and a stage for top musical and comedic talent. Taking a cue from his unforgettable predecessors, including hosts Johnny Carson and Jay Leno, Fallon carries on the tradition that audiences know and love - kicking off every show with the iconic "Tonight Show" monologue. Known for his huge online presence, Fallon also brings along with him many of the popular segments, celebrity sketches and musical parodies that fans have grown to love including #Hashtags, Thank You Notes and Slow Jam the News.

The critically praised Grammy-winning group The Roots serves as "The Tonight Show" house band.

From Universal Television and Broadway Video, "The Tonight Show Starring Jimmy Fallon" is executive produced by Lorne Michaels. Producers include Gerard Bradford, Mike DiCenzo and Katie Hockmeyer. The Tonight Show" tapes before a live studio audience from Studio 6B in 30 Rockefeller Center.

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