Jimmy Fallon & Paul McCartney Sing The Best Christmas Song Ever Written.

Music |

"Sing" is a brand new movie that features animated animal characters singing iconic pop songs. But since the holidays are practically days away, Jimmy Fallon decided to use the film's approach towards holiday tunes to do an acapella number just for his show. Now Jimmy Fallon, who hosts "The Tonight Show" is well known for his hilarious comedy sketches, celebrity interviews, and music parodies. So it's no surprise that Fallon invited the famous voice talents from the film to sing the holiday classic "Wonderful Christmas Time". There's certainly no shortage of talent here either. You'll get to see and hear celebs like Paul McCartney, Matthew McConaughey, Scarlett Johansson, Seth MacFarlane, Tori Kelly and Reese Witherspoon.

So take a peek as Jimmy and The Roots, along with some of your favorite celebs spread their Christmas cheer with this acapella rendition of a holiday classic. Oh and don't be surprise if some of the cartoon animals from the film pop up along the way.

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