Although Luke Bryan and Darius Rucker didn't actually sing 'Jingle Bells' together, they still contributed to an unintentional duet, turning the Christmas classic into a decidedly country carol!

Bryan, wearing a cozy gray fleece, baseball cap and a huge grin starts the song off with the opening line, "Dashing through the snow." As he sings, he looks as giddy as a little kid on Christmas morning.

All of a sudden, the video switches to Rucker, also donning a baseball cap and fleece as he belts out the lyrics. He adds a bit more seriousness to Bryan's goofy rendition, but as the carol continues, he begins swaying along with a tiny smile.

As the video changes from spotlighting Bryan to Rucker and back again, it's amazing how the two singers both stay on tune -- even though they weren't singing side by side.

The two country crooners were filmed singing the song separately during the 'CMA Country Christmas,' taping, but were later melded together, blending their vocals and verses into a fantastically festive, albeit unintentional, duet.

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