article_snippet: Forbes estimated last year that Forbes net .
article_snippet: worth was $520 million.
article_snippet: business interests, including 40/40 Club sports bars and .
article_snippet: headphones business to Apple, and 50 Cent, who sold Jay-Z . vitamin water business to Coca-Cola.
highlights_snippet: $56m .
  Rapper, 45, met with industry's biggest players to discuss the move .
  