Justin Bieber (18) advised Prince William (30) to combat his baldness. He had expressed his horror at Prince William’s receding hairline when he was asked in an interview what he would do if his own famous locks started thinning.
He told Rollacoaster magazine during his BELIEVE promotional tour in the UK last month:

“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?”