The Tonight Show: "We Are The Champions" by Jimmy Fallon, The Roots, and Music Superstars

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."

• 2015-02-03T22:02:21+00:00
• Duration: 03:04

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The Tonight Show, Super Bowl, Super Bowl 2015, We Are The Champions, Jimmy Fallon, The Roots, Music Superstars , Carrie Underwood, Sam Smith, Ariana Grande, Blake Shelton, Usher, Meghan Trainor, One Direction, Christina Aguilera, entertainment, tv, television, Jimmy Fallon