One Direction on the '' The Tonight Show '' Monday Dec 22,2014

 

One Direction wear novelty Christmas jumpers to sing with Jimmy Fallon as they record segment for The Tonight Show

 'One Direction' are the biggest boy band in the world and Jimmy Fallon invited One Direction to appear on The Tonight Show to get into the festive spirit.

The television host shared a couple of snaps of the boys in action to his Instagram account , writing, 'Finally! Me and 1D! The Roots! Classroom instruments!! Tonight!'

Showing their comical side, the handsome five piece each wore a different novelty Christmas jumper as they sang songs with Jimmy and The Roots.