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The Tonight Show Starring Jimmy Fallon
WEEKNIGHTS 11:35/10:35c
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S2 E74 | 02/01/15

Will Ferrell, Kevin Hart, Ariana Grande

In honor of the Super Bowl, Jimmy and the Roots join Carrie Underwood, Sam Smith, Ariana Grande, Blake Shelton, Usher, Meghan Trainor, One Direction, and Christina Aguilera for an a cappella version of "We Are the Champions."