We all know Justin Bieber loves his tats - and the pop heartthrob is seen getting a very prominent new bit of ink in advance of his TV roasting.

A promo clip released to promote the Comedy Central Roast of Justin Bieber sees the star sitting shirtless and face forward in a tattoo parlour as the artist works away on his back.

It's only as the camera cuts to reveal his handiwork that we see a huge target taking shape between his shoulder blades.

He asks the tattooist: "How does it look?"

And the man laughs and replies: "It's f**king perfect."

Roastmaster Kevin Hart said in a statement: "I don't normally do roasts, but I had to step out for my guy Biebs.

"It's his big 21. It's about to be operation roast everyone's ass."

And Biebs himself has tweeted: "For years I have wanted Comedy Central to roast me. They said only if I provided them w/ more material so for a year now I have worked hard.

"Finally after all that hard work for my 21st bday it's happening."

The event is being filmed mid-March and screened at the end of the month - presumably because there will be so much material to edit down!