Jay Z ranks 4th, rapper, songwriter and businessman who’s net worth is $500 million. Earning his net worth through his career in the music industry, beginning as co-founder (with Damon Dash and Kareem Biggs) of Roc-A-Fella records, where he began his recording career. His recent deal with Live Nation is reportedly worth $150 million. He’s contributed $1 million to help with the victims of Hurricane Katrina, through The American Red Cross.