We all know Niall Horan and James Corden are cheeky, so when they combine forces we really shouldn't be surprised that this sort of thing happens.
Niall has to date managed to steer clear of the mass tattooing odyssey that the other One Direction boys seem to have undertaken (we reckon because at the end of the day he has an Irish mammy who wouldn't let him), but thanks to Corden's influence it appears all of that has changed. Thankfully though only temporarily.
Niall revealed his new piece of body art on Sky's 'A League Of Their Own' , which, delightfully, is James Corden's face and even more delightfully appears on the entirety of Niall's left buttcheek. Lovely. Mammy will be so proud Niall.
Unfortunately for Horan though, the tat wasn't as temporary as he had been told, and took three weeks to completely disappear from his arse. 'We made a thing on the show that he’s the only member of the band without a tattoo.' Corden revealed. 'I said to him we’ve got this idea of putting a tattoo of my face on your body. Niall went, ‘You should put it on my arse’. We tattooed it on to his left buttock — it took him three weeks to get rid of it. He sent me updates every week, with a photo of my fading face on his arse saying, ‘It’s still not gone yet’'.'
And if you so desire you can peer at Niall's bare-but-for-Corden's-face arse below.