One Direction sing 'Santa Claus Is Coming To Town' on The Tonight Show (VIDEO)

One Direction sang 'Santa Clause Is Coming Town' on The Tonight Show starring Jimmy Fallon Music Room on Monday, December 22, 2014.

OMG, this was the cutest thing ever.

Go Niall! Go Zayn! Go Harry!

I hope 1D comes over to my apartment for Christmas caroling one day.

Watch the video here: