If you didn't stay up to watch "Late Night With Jimmy Fallon," you didn't see Mariah Carey's endearing performance of her most beloved Christmas song.  She sang "All I Want For Christmas" with Jimmy Fallon, The Roots, and some school kids but what made this so special was their use of toy instruments, the kind you see in classrooms.  Watching this will bring a smile to your face so I invite you to click the link here:

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