Why? Just why?
He is about 12? So we guess he thought it was funny??
Justin Bieber uploaded a pic on his Instagram page baring his bum yesterday!
Now we don’t know if you know but Justin’s a little bit popular, a bit of a megastar you might say, so as most celebs he then tried to delete the evidence but it was way too late! Haha, rookie.
We wonder what Selena Gomez thinks of the snap?!
Being the tender age of 18-years-old should we expect more rebellious behaviour from the teen star?
In other news, here's a cute picture Justin posted of himself, think we enjoy this a little bit more. Only by a little though...