Justin Bieber Mocks Prince William's Thinning Hair

Pop princeJustin Bieberdemonstrated some rather unroyal behavior when he tookPrince William to task overof all thingshis hairline.

In an interview with the U.K.s Rollercoaster magazine, Bieber asked why William hasnt pursued treatments to combat his thinning hair.

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I mean, there are things to prevent that nowadays, like Propecia, Bieber said. I dont know why he doesnt just get those things, those products. You just take Propecia and your hair grows back. Have you not got it over here?

Not everyone agrees with Bieber's prescription, as health experts point out William would have to take Propecia for the rest of his life, and even then it wouldn't help him sprout new hair. Its also known for sexual side effects, such as a lowered libido.

Those in Britain didnt take kindly to Biebers comments, and unleashed a flurry of tweets shoring up William against the Canadian singer's attack.

The British aren't the only ones Bieber has angered as of late.Heattracted the ireof his own countrymen by claiming his aboriginal heritage entitled him to free gas in Canada.

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"I'm actually part Indian," Bieber said in a recent interview with Rolling Stone. "I think Inuit or something? I'm enough percent that in Canada I can get! free ga s."

Canadas Congress of Aboriginal Peoples said the claim was untrue, and typified the misconception that aboriginal people received a free ride.