Ever the source of unending attention, Justin Bieber has (surprise, surprise) made the news once again. This time it's for several candid shots of him playing the guitar naked for his grandma.

On Moday, the celebrity gossip news site TMZ broke a story about Bieber that included two photos of him milling about naked with nothing more than a guitar to cover up his privates. Probably not the type of thing you wanted to start your week out with, but then again, it appears we've all just been living in Bieber's world lately.

"We're told birthday-suited Bieber went right up to his grandma and started belting out some impromptu lyrics ... like, 'I Loooove you grandmaaaa ... how are youuuu ... helloooo grandma,'" reports TMZ.

The first photo shows a frontal picture of Bieber, which does not display significantly more skin than we are used to seeing from the perennially shirtless and pants-sagging superstar. The second one, however, exposes the singer's derriere, though unlike similar past incident, not too many people seem to mind.

"Remember the outcry when Miley Cyrus bared just her back (let alone her backside) for Vanity Fair? Or when Dakota Fanning starred in an ad for Marc Jacobs's Oh, Lola! perfume, and the Internet collectively clutched their pearls at its Lolita suggestiveness-even though Fanning was fully clothed without even a hint of décolletage?" writes The Daily Beast.

It's true, it does appear that Bieber is immune to the normal rules of society, even the restrictions placed on many other celebrities. Part of that is no doubt due to his highly erratic behavior, which has included allegations of spitting on a neighbor, peeing in a restaurant's mop bucket, and starting a brawl at a nightclub.

So just what does his family think of the behavior? Well, based on the photo, grandma certainly didn't seem outraged over a little nudity. As for his mom, well, she is just trying to look at the positives of what her son does.

"I'm not naive to think that my child is perfect and making all the best decisions of his life," said Bieber's mother Pattie Mallette. "I mean, people don't talk about all the great things he does every day. Every night before a show, he meets with Make-a-Wish kids. He goes to sick kids' hospitals. He visits with them (and) takes his time. He gives back to charities."