Justin Bieber posts, then deletes, his bare behind on Instagram

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Justin Bieber made himself the butt of the joke this weekend -- literally.

The 18-year-old "Boyfriend" singer posted a photo on Instagram Saturday under the hashtag "#Moon" of himself flashing photographers on the red carpet. The mischievous pic showed the Biebz, clad in a black cap, sunglasses and a black tank top, looking over his shoulder as he pulled down his pants for the snappers.

"As a prankster u have to respect another good prank. only makes sense. #crackdealer," his manager, Scooter Braun, tweeted in response.

See also: Justin Bieber Internet hoax angers Twitter users

Bieber replied with a quick "haha" before proceeding to take down the "offending" shot. (The image has been saved on the Internet, though, so while we can't post the photo ourselves, you can see the offending image here.) Though the Ontario native did not offer an explanation for why he removed the image, a day later he reposted a photo of a piece of text with the title, "I am a Christian."

"When I say that 'I am a Christian,' I am not shouting that 'I am clean living.' I'm whispering 'I was lost, but now I'm found and forgiven,'" it reads.

Talk about good timing! Later that day, Bieber posted a photo of himself hanging out with "homey R Kelly" in a hotel room. You may remember the King of R&B has had various notorious run-ins with the law since the mid'90s.

See also: Selena Gomez speaks out about life after Justin Bieber

But, don't worry, the Biebs seems to be keeping out of trouble. He appears to be more concerned about the acoustic version of "Believe," which drops next Tuesday.

"some of the most honest music i have ever written. #9days #Countdown #BelieveAcoustic - thanks," Bieber tweeted yesterday.

No doubt his fans are, shall we say, over the moon.