Niall and Kelly Sing Incredible Harmonies In Guitar Riff Game With Guy Branum

As coaches on "The Voice," it's Niall Horan and Kelly's job to listen closely to music, but how good are they at identifying songs based just on a guitar riff? In a hard-fought game of "Catch A Riff of This" hosted by Guy Branum, Niall and Kelly go head-to-head to see who can guess the iconic guitar riff rock-god Jaco is rocking out to first.