One Direction Sing A Christmas Classic (In Christmas Jumpers)

23/12/2014 11:27 | Updated 20 May 2015

If you're really not feeling festive yet, this video might help.

one direction

One Direction joined Jimmy Fallon on the Tonight Show in the US earlier this week to perform a special Christmas treat.

That's right - Niall Horan, Zayn Malik, Liam Payne, Harry Styles and Louis Tomlinson teamed up with Jimmy and his band for a rendition of 'Santa Claus is Coming to Town.' And yes, they were dressed in Christmas jumpers.

(It's almost as good as the Victoria's Secret Angels reciting this festive poem in their pyjamas...)

It's been another busy year for One Direction. The boys helped this guy propose to his girlfriend at a concert in Atlanta and in November, they got the chance to chat to the Duke and Duchess of Cambridge at the Royal Variety Performance.

According to the Mirror, the group felt nervous ahead of their meeting with the royals.

"It's the most nervous I think I've ever been in my life," Liam Payne said. "I didn't say ma'am," added Louis Tomlinson. "I said - Hi. How are you? I'm Louis."

Harry's thoughts? "I said congratulations on the bump. (Though) she didn't look bumpy."

Love 1D? So do these fans...

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