But it turns out the picture was a tad unsettling to some of his fans, namely the ones who are incredibly young! Because some seemed to be offended by the pic, the Biebs deleted it from his Instagram and issued an apology in another post, sharing a picture where he is fully clothed with his back to the camera.
He explained his decision to remove the risqué pic in the caption, writing, "Hey I Deleted the photo of my butt on Instagram not because I thought it was bad but someone close to me's daughter follows me and she was embarrassed that she saw my butt and I totally wasn't thinking in that aspect. And I felt awful that she felt bad.
"To anyone I may have offended I'm so sorry," he continued. "It was completely pure hearted as a joke but didn't take in account there are littles following me!!! Love u guys."
Although he offered no explanation as to why he originally posted the naked picture, Bieber and his butt managed to catch the attention of Miley Cyrus, who posted a picture of reposted his picture but added a little more junk to the trunk. She captioned it, "Bieber got back!"
Jokes aside, the 21-year-old singer has been proud of his body as of late, telling Men's Health how hard he has worked to become more muscular.
"You know, I'm just getting bigger, man. It's like, my shoulders don't fit in some things," he told the magazine in April. But many were quick to speculate the legitimacy of the photos, calling the singer out for Photoshopping the spread. But a behind-the-scenes photo shoot proved there weren't any digital enhancements made.
He addressed the haters, saying, "It's not Photoshopped for all you fools out there saying it's Photoshopped." A rep for the magazine also negated the reports, telling E! News that Bieber looked "amazing" onset.
We can definitely believe that, as his now-deleted picture showed how great he looks sans clothes.