British comedian James Corden has revealed that One Direction heartthrob Niall Horan got a temporary tattoo of his face plastered on his backside and was left trying to scrub it off for a month.

The 'Best Song Ever' hitmaker, who is the only member of the world famous boyband without any body art to show off, had the image transferred onto his bottom during the comedy show 'A League Of Their Own', and Corden told The Sun newspaper that it just wouldn't come off:

"We made a thing on the show that he's the only member of the band without a tattoo. I said to him we've got this little idea of putting a tattoo of my face on your body. Niall went, 'You should put it on my arse.' We tattooed it onto his buttock - it took him three weeks to get rid of it."

Corden (pictured below with the One Direction lads) added: "He sent me updates every week, with a photo of my fading face on his arse saying, 'It's still not gone yet'."

Scroll down to see the picture of Horan's tattooed bottom (© Ollie Upton).