It's official: Jay-Z reigns as hip-hop's richest mogul. On Forbes' list of Hip-Hop Cash Kings, Jay-Z tops rap rivals 50 Cent, Sean "Diddy" Combs and Kanye West with an estimated $34 million earned last year. Jay-Z is the president and CEO of Def Jam Recordings, part owner of the New Jersey Nets and has endorsement deals with Budweiser, Hewlett-Packard and General Motors — aside from releasing multiplatinum records. 50 Cent came in second with $32 million while Diddy came in third with a mere $28 million. Jay-Z certainly seems to have it all, including his gorgeous girlfriend, Beyoncé!