As JAY-Z is making moves so is his net worth. Hova is just behind Diddy as one of the richest people in today's Hip-Hop world. With Diddy being at $820 million JAY-Z is not far behind being at $810 million. It's quite the jump for famed Hip-Hop rapper JAY-Z, just in 2016 he was in the third spot at only $610 million. JAY-Z's fortune has jumped over 30% after a $200 million investment into JAY-Z's music-streaming service, Tidal. Making worth $600 million which is worth 10 times more than what he had bought the company for back in 2015. Whatever JAY-Z is doing, he's doing it right!