Carrie Underwood, Jimmy Fallon sing 'We are the Champions'
Monday, February 2, 2015 - 14:00
in Physics & Chemistry
Annie MartinPHOENIX, Feb. 2 (UPI) -- Carrie Underwood performed an a cappella version of "We are the Champions" with Sam Smith, Ariana Grande, Blake Shelton, Usher, Jimmy Fallon and The Roots.