One Direction's Irish heartthrob Niall Horan has revealed that he's preparing to deal with his knee injury on their forthcoming tour.

He took to his official Twitter page earlier today (February 7) and told his 9.6 million followers that in order to brace himself for the pain his leg might cause him, he has stocked up of knee supports: "Tour don't mess with my knee,I've got it sorted! #kneebrace."

Last night, Tom Fletcher of pop-rock band McFly told his Twitter fans that he's been spending time in the studio with Horan where they've written a song together:

"Wrote an awesome song today with @NiallOfficial @Dannymcfly and @dougiemcfly. And ate some pretty darn good rocky road from @MrsGiFletcher."

Danny Jones, also of McFly, added: "Awsome song coming along with @NiallOfficial @tommcfly @dougiemcfly."

Watch an impressive One Direction fan-organised flash mob that recently took place in Finland below: