The ‘Boyfriend’ singer took a dig at the Royal for not combating his baldness even though hair treatments are widely available.

"I mean, there are things to prevent that nowadays, like Propecia," the media quoted him as saying.

"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?" he added.

Bieber’s comment has not been received well by many British and non-British fans of Prince William.