PHOTO - Justin Bieber Mooning for the Camera... Gets Another Tattoo!

Justin Bieber mooning the camera and getting new tattoos!

Pop singer Justin Bieber has really been expressing himself lately…

Last week the singer added to his long list of new tattoos by inking a series of roman numerals on his chest to celebrate the year his mother Patti Mallette was born…

Justin Bieber's new roman numeral tattoo

Justin Bieber getting his new roman numeral tattoo

Related: Justin Bieber Tattoos – PHOTOS

And yesterday Bieber decided to drop his pants and moon his fans during a photo stop – posting the following photo to his Instagram account.

Justin Bieber moons his fans

Bieber deleted the mooning photo a few hours later.

His manager Scooter Braun insists the butt showing  was just a dare saying on twitter,

"As a prankster u have to respect another good prank. Only makes sense. #crackdealer…"

Bieber’s fans went wild by “liking” the butt photo over 20,000 times before it was removed from Instagram.

So, for those fans who have always wanted to know what Justin Bieber’s ass looks like…. now you know.

Follow @InfoStar on Twitter - We won't show our butt...