One Direction joins Jimmy Fallon for ‘Santa Claus is Coming to Town’ (VIDEO)

One Direction stops by the “Tonight Show” Music Room to perform “Santa Claus is Coming to Town” with Jimmy Fallon. (Dec. 22, 2014)

This story was originally published December 23, 2014 at 9:18 AM with the headline "One Direction joins Jimmy Fallon for ‘Santa Claus is Coming to Town’ (VIDEO)."