COMEDY
09/19/2013 08:07 am ET

Black Simon And Garfunkel Sing 'Roar' By Katy Perry (VIDEO)

It's always a good day when Black Simon and Garfunkel show up on "Late Night With Jimmy Fallon." If you ask us, they should release a full version of their cover of Katy Perry's "Roar" on iTunes.

Watch Questlove and "Captain" Kirk Douglas make some magic above.

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