6) Simon Cowell (Net Worth: $510 Million)
Critical television personality, record producer and impresario Simon Cowell that everyone loves to hate has produced and promoted singles and albums of several successful artists including boy band, One Direction. He made most of his wealth as a judge and through his talent shows Got Talent and The X Factor, a talent show he created in 2004 . He is the owner of Syco, a television production and music producing house. He has been named one of the 100 most influential people by Time twice (2004 and 2010).
5) Jay-Z (Net Worth: $550 Million)
Jay-Z is not only a talented rapper, but also a successful businessman and record producer. His wealth increased after he sold clothing line Rocawear for $204 million in 2007 and signed $150 million collaboration with Live Nation in 2008 through his Roc Nation entertainment company. He co-founded record label Roc-A-Fella Records and is also a minority owner of Brooklyn Nets. After a break from rapping in 2003, Jay-Z turned to the business side of music, becoming president of Def Jam Recordings. As president of Def Jam, Jay-Z signed hitmakers like Rihanna, Ne-Yo and Young Jeezy.