Simon Cowell – $550 Million
Simon Cowell didn’t create music on his own, but he did become a manager for some really popular bands like Westlife or Five. But a lot of people know him at this time form X Factor or American Idol where he is a judge. On top of that, he still is a good manager for a variety of people like One Direction, Leona Lewis, Il divo and so on. The fact that he has half a billion net worth is not that surprising, considering his work.