[youtube clipid="2mjvfnUAfyo" autoplay="0"]Jimmy Fallon enlisted a bunch of his celebrity friends to celebrate the New England Patriots victory over the Seattle Seahawks in a climatic Super Bowl XLIX. The Tonight Show host remade Queen's classic "We Are The Champions" song in a cool new a capella version. Jimmy Fallon featured several stars in the colorful video including Usher, Ariana Grande, The Roots, Sam Smith, Carrie Underwood and Christina Aguilera. Ariana Grande held her own until Christina came on the track and shut her down in classic Christina Aguilera style. Check out the fun video above.