Bieber disses Prince William's Hairline

That's no way to speak to royalty!

In a UK interview with Rollacoaster Magazine, Justin Bieber is quoted saying in regards to Prince William's thinning hairline:

"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?"

So says the mega pop star who has a perfect chestnut mane of his own and probably hasn't had one care in the world about it disappearing anytime soon!

According to its website, "Propecia is a prescription medicine used for the treatment of male pattern hair loss (androgenetic alopecia)."

Even if meant as a lighthearted dig at the Prince, the British are not taking Bieber's remarks so lightly.

British Journalist and author of "Wicked Whispers" Jessica Callan spoke to the Huffington Post, stating that "The Brits are viewing Justin Bieber's diss about Prince William's challenging hair problem in the same way you [Americans] view an annoying fly buzzing around you. He needs to be swatted away."

A pretty harsh comparison for the Biebs.

Callan continued with, "Wills and Prince Harry may joke about William's thinning hair, but that doesn't mean a kid like Justin can come sauntering in and join in the joke. It's like inviting someone over for dinner and they tell you how awful your carpet is. Even if you agree, how dare they say it? So the Biebs had better watch out! Wills may be thinning on top but he is one cool royal and landed himself the hottest future queen England has ever had. How can Justin and his girly hairstyle possibly compete with that?"

Looks like Prince William is too busy attending the Olympic Games with wife Kate Middleton to really care what the "Boyfriend" pop star has to say about his psychical appearance, but the Brits are apparently ready to put up a fight in defense of their Prince's hairline dignity.