Paul McCartney, Jimmy Fallon and a huge cast of stars perform "Wonderful Christmastime"

Jimmy Fallon along wtih Paul McCartney, Matthew McConaughey, Reese Witherspoon, Scarlett Johansson, Seth MacFarlane and Tori Kelly have recently done an amazing A Capella version of "Wonderful Christmastime."
The A List stars united for their new movie 'Sing' and appeared on Jimmy Fallon's Tonight Show where they performed the song.
The video has been viewed hundreds of thousands of times and has got everyone feeling festive, see it for yourself above!