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22 June 2012, 17:18
The 'Boyfriend' star jokingly calls talk show host a "Grandpa" after he tells him to stop getting tattoos.
Justin Bieber unveiled a new tattoo during an appearance on US TV show The Late Show With David Letterman last night (21st June).
The tattoo of the word 'Believe' is located on the 'Boyfriend' star's left forearm and was inspired by his new album of the same name.
Justin admitted he had just got the tattoo this week after being probed by David Letterman.
"This is a new tattoo, I have just a couple," he said, to which the show's host asked if it was the last: "It might be," Justin replied.
Letterman then insisted that Justin should stop himself from getting any more tattoos because it would harm his look.
"How does it not help the way I look?" Just replied. "Yesterday, my album came out – it was a brilliant day – so I got 'Believe' tattooed on me."
Watch Justin Bieber's appearance on The Late Show With David Letterman below:
The 'All Around The World' singer then jokingly called Letterman a "Grandpa" before incorrectly mistakenly pronouncing the Sistine Chapel as the "Sixteenth Chapel".
Justin has been busy this week promoting his new album 'Believe', which was released on Monday (18th June) in the UK and Tuesday (19th June) in America. It is already on course to top album charts around the world.
See how well you know celebrity tattoos in our gallery below.