How Usher gave the world Bieber Fever

By SPENCER BRIGHT Under Usher's wing: Justin Bieber has been nurtured by the global superstar who wanted to help him succeed How do you learn to become a superstar? Well, the best way must surely be to ask one who did it. Even better, get them to be your mentor. And Usher, with 45 million record sales, is undoubtedly a superstar. Justin Bieber may have a way to go — but his ascent already loo...