Merry Xmas from Radio Today

What better way to wish you a very merry xmas than to play you this song from Jimmy Fallon.

It's part of a series Fallon does backstage in the Late Night 'Music Room' where his house band 'The Roots' play kids instruments.

You may have heard this song a lot over the last week, but this is a cool version…

If that isn't enough….a little while after they aired the song, Jimmy played a clip of a Mariah Carey super fan's reaction to it…funny…see it below….

MERRY XMAS !!!!