Jason Merritt/Getty Images, Anwar Hussein/WireImage
Looks like Justin Bieber royally messed up this time.
Prince William and his brother Harry may joke here and there about Will's receding hairline, but when Justin Bieber tried to get in on the gag, it didn't go over so well.
"I mean, there are things to prevent that nowadays, like Propecia. I don't know why he doesn't just get those things, those products. You just take Propecia and your hair grows back. Have you not got it over here?" the "Believe" singer told Rollercoaster magazine.
There are a few arguments to suggest Biebs was way out of line with the juvenile jab. First, Bieber's signature shag was once a joke on its own. Second, William still managed to nab a stunner of a wife. And, thirdly, while Bieber might be the Prince of Pop, William is an actual prince and future King of England. And Brits have hooked on to every one of those arguments in defense of their beloved royal.
See also: Justin Bieber says he's part Indian, 'or Inuit or something'
"The Brits are viewing Justin Bieber's diss about Prince William's challenging hair problem in the same way you view an annoying fly buzzing around you. He needs to be swatted away," said British journalist and author Jessica Callan. Ouch.
And it's not only Commonwealth-ers across the pond that Bieber has managed to offend recently. Last month, the 18-year-old native of Stratford, Ontario described his ancestry as, "...part Indian. I think Inuit or something? I'm enough per cent that in Canada I can get free gas." Which, as it turns out, is not only offensive but completely untrue. Canadian aboriginals do not get free gas.
See also: Justin Bieber is too loud, say his famous neighbours
He's known for his dance moves, but Justin Bieber seems to have a special talent for putting his foot in his mouth.