Music Superstars Join Jimmy Fallon + The Roots In An A Cappella “We Are The Champions” In Honor Of The Super Bowl [VIDEO]

The Super Bowl is over but that doesn't mean we catch enjoy the afterglow. Check out this special little song!

"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."