WATCH: The Roots, Jimmy Fallon and One Direction Sing “Santa Claus is Coming to Town”

Much like their ditty with Mariah Caray last year, singing her infectious “All I Want for Christmas Is You,” Jimmy Fallon and his Philly-bred house band, The Roots, teamed up with One Direction to sing “Santa Claus is Coming to Town”—with toy instruments.

The guys add an extra special touch with their vert ugly Christmas sweaters, and lots of energy. Check out the video above.