Dan and Shay

The responses are priceless.

Their harmonies blended perfectly on the feel-good song.

Including songs from Blake Shelton, Maren Morris, Jason Aldean and more.

Sam Hunt's 'Southside' album is a unicorn on this list.

Dan + Shay tell a story of a lonely pandemic Christmas, with a glimmer of hope, in their new music video.

Dan + Shay's families are the real stars of this video.

Check out some behind-the-scenes photos before the show airs on Nov. 30.

Tune into the special on NBC this December.

The two, who won every award they were up for, showed off their artistry with a rendition of "I Should Probably Go to Bed."

Darius Rucker, Thomas Rhett, Tim McGraw and many more are also putting on their holiday best and hitting the stage.