Who needs Christmas carolers when you have Jimmy Fallon, The Roots and One Direction singing "Santa Claus is Coming to Town"?

The Tonight Show host gathered himself and the musicians into a festively decorated room where everyone dressed in their best Christmas sweaters! Seriously, Harry Styles really knows how to make an ugly piece of clothing look good. In classic Fallon fashion, the performers didn't croon this classic acapella style—they used classroom instruments to supplement their voices!

The clip kind of makes us wish we were back in elementary school learning how to play the triangle so we could join in on the fun LOL!

Harry and Niall Horan sat front and center with the 40-year-old late night host, while Zayn Malik, Liam Payne and Louis Tomlinson hung out with The Roots in the back. We wouldn't mind this group knocking on our doors to perform.

Not only is One Direction busy serenading us, the band is also getting ready to air its first U.S. network special on NBC!

Jimmy Fallon, The Roots, One Direction

Douglas Gorenstein/NBC

One Direction: The TV Special, a primetime musical event on Dec. 23, "will offer a rare inside look at the wildly popular band through a combination of documentary material, comical stunts and musical performances."

Additionally, viewers will see exclusive behind-the-scenes footage from the South American leg of their 2014 Where We Are Tour and follows the band as they recorded their new album Four on the road, and perform their special intimate concert for lucky fans at Universal Orlando Resort.

"We're really proud of our first TV Special," the band said in a statement. "We had a great time filming the different parts both in Orlando and on the road in South America. We can't wait for our fans to see it."

(E! Online and NBC are both part of the NBCUniversal family.)

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