Justin Bieber thinks Prince William needs to sort his hair out

Justin Bieber thinks Prince William needs to sort his hair out – well, his lack of hair.

The 18-year-old singer can’t understand why William isn’t doing anything to prevent his hairline receding further.

“I mean, there are things to prevent that nowadays, like Propecia,” told Rollercoaster magazine.

“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?”