Pop star JUSTIN BIEBER has showed off his cheeky side by baring his bottom in a photo posted online on Saturday (19Jan13).
The Boyfriend hitmaker pulled down his trousers and 'mooned' the camera for the surprising snap, which he shared with millions of fans on his official Instagram blog.
The picture, which shows Bieber peering over his shoulder and grinning, was deleted shortly after it was published, but it had already been accessed more than 15,000 times.
The singer's manager Scooter Braun took to Twitter.com to address the photo, jokingly referring to Bieber as a "crack dealer" and writing, "As a prankster you have to respect another good prank. Only makes sense."
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