Jimmy Fallon's "Wonderful Christmastime" Is Merry AF

The holidays are here, and the cast of Sing is here to make your holiday merry and bright. On Tuesday, the host of The Tonight Show, Jimmy Fallon, joined the cast of Sing, and music group, The Roots, for an a cappella rendition of "Wonderful Christmastime." The late-night host tweeted out the video early Wednesday morning, for those that missed the evening clip the first time. In the film Sing, a Koala, Buster Moon (Matthew McConaughey), is trying to save his beloved theater, and to do so, he produces the world's greatest singing competition. In this way, it's very fitting that Sing utilizes a creative, musical approach to get people in tune with their movie.

Sing's promo isn't the first time Fallon and The Roots have joined vocals. They've previously performed "We Can't Stop" with Miley Cyrus in 2013, and a "Star Wars" medley with the cast of Star Wars: The Force Awakens in 2015. In 2015, they also did a version of "We Are The Champions" with an eclectic mix of singers, namely, Carrie Underwood, Ariana Grande, Christina Aguilera, Blake Shelton, Usher, Meghan Trainor and One Direction. In this 2016 "Wonderful Christmastime" take, the actors are eventually joined by the characters they voice. Paul McCartney, Matthew McConaughey, Reese Witherspoon, Scarlett Johansson, Seth MacFarlane and Tori Kelly all sing along in this year's Fallon/The Roots video.

Just like the videos before it, the Sing cast's video has the singers squared off into a checkerboard of boxes alike the ones seen in The Brady Bunch series' opening. The boxes are colorful, and invitingly kid-friendly, as are the actors-turned-singers' attire. Just look at Scarlett Johansson bundled up in giant, white earmuffs! It's also charming that little holiday hats were added on to the animated characters. Gah! I'm so stoked for Sing, and for Christmas!

If you are too, absolutely check out the a cappella band Pentatonix. They've done plenty of Christmas songs that you can jam to as you finish wrapping holiday gifts for all the special people in your life. Once you're finished, go get your musical fix by watching Sing in theaters now!