The tattoo artist who recently inked Zayn Malik and Louis Tomlinson has revealed all about working with the boys.

Earlier this week, the One Direction stars invited renowned tattooist John Bahel to their hotel room in New York City, with Bahel taking to Twitter to write: "I usually don't make house calls but made an exception for #onedirection #zaynmalik #louistomlinson."

While Malik got the letters 'MSG' inscribed on his arm after playing legendary venue Madison Square Garden, Bahel wouldn't reveal what design Tomlinson got.

He told MTV News: "They just gave me a buzz and I went down there. So [Zayn] was just super stoked on playing MSG and being in New York. He was just like super stoked that so many people came out, so many people came out from different areas of the world pretty much."

He added: "I'm pretty sure they don't want me talking about exactly what they got because that's on them. That's their personal thing, but I did not do 'MSG' on Louis."

Bahel says he had a "really fun time" inking Tomlinson and Malik.

He continued: "Sometimes I get clients that don't really talk, kind of stern. But they were really fun to tattoo. They were normal guys that like to have fun. They're super chill guys. They're not super snobby or anything like that. They're just like normal guys that like to talk about random things, just talk about normal things."