U.S. R & B superstar was friend of Michael Jackson . He has sold over 100 million albums . `` It probably would have been easier if I 'd just named it ' Passing on the title of ` ` King of Soul , '' he 's now mentor to teen idol Justin Bieber .
U.S. R & B superstar was friend of Michael Jackson . He has sold over 100 million albums . Passing on the title of ` ` King of Soul , '' he 's now mentor to teen idol Justin Bieber .