Justin Bieber was mocked by chat show host David Letterman.
The 65-year-old TV star warned the 'Baby' hitmaker not to get any more tattoos telling him "Do me a favour-don't go nuts, you know what I mean? Because more and more, you see the 'mural' and like the Sistine Chapel...it's too much."
However, when Justin failed to understand that David meant Michelangelo's Sistine Chapel in The Vatican in Rome and answered "I'm not going for the 16th chapel look," David couldn't help poking fun at the 18-year-old Canadian heartthrob.
He joked "Canadian high school!"
However, Justin didn't hold a grudge and fist-bumped the TV host to show there were no hard feelings.
Meanwhile, Justin recently revealed that he is to record a track alongside One Direction's Niall Horan, Harry Styles, Louis Tomlinson, Zayn Malik and Liam Payne on the band's eagerly awaited second album.
He said: "The One Direction guys are great. We have a lot of fun whenever we hang out. They came over my house and we were just chilling out around the pool and listening to music.
"We were talking about me collaborating with them on a song on their next album. It's gonna be great."