![Jimmy Fallon & Billy Joel Form Doo Wop Duo With Loop App – Awesome [Video]](http://townsquare.media/site/35/files/2014/03/jimmy-fallon-billy-joel.png?w=980&q=75)
Jimmy Fallon & Billy Joel Form Doo Wop Duo With Loop App – Awesome [Video]
Billy Joel visited the set of The Tonight Show with Jimmy Fallon. On the show, Fallon expresses his appreciation for Joel's music, and his idea to have them perform together...as a doo wop duo. He uses a loop app, and the outcome is AWESOME!
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