Jimmy Fallon gathered all his celebrity friends who owe him favors to sing an acapalla version of 'We are the Champions.'
Fallon and his in-house band The Roots were joined by an all-star cast that included Carrie Underwood, Blake Shelton, Ariana Grande, Sam Smith, Usher, Meghan Trainor, Christina Aguilera and the members of pop sensation One Direction.
The Queen anthem was sun in honor of Sunday's Super Bowl. The song was pre-recorded, so that in the event that the Patriots trumped the Seahawks for the title, this gem of a video could be released immediately after, capitalizing on the win and the excited fans. Colorful, Passionate and filled with heart and soul, this star-studded acapella cover of 'We are the Champions' will have you in a celebratory mood.