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Justin Bieber is full of surprises. On the heels of his recent breakup with SelenaGomez and a headline-making marijuana controversy, the 18-year-old singer showed off his bare butt in an Instagram picture Saturday, Jan. 19.

Wearing a black tank top, a baseball hat and aviator sunglasses, the "Beauty and the Beat" singer peers over his shoulder in the image. Bieber deleted the image shortly after it was posted to his official account, though it had already been liked more than 15,000 times and received more than 2,700 comments.

Bieber's manager, Scooter Braun, joked about the picture via Twitter. "As a prankster you have to respect another good prank," he wrote. "Only makes sense. #crackdealer." Bieber's succinct reply: "Haha."

The Canadian pop star is currently on tour to support his latest album, "Believe." He next performs at the Greensboro Coliseum Complex in Greensboro, North Carolina, on Jan. 19. He'll travel to Georgia and Florida throughout the month before taking his act to Dublin, Ireland, Feb. 17.

-- Us Weekly