Dr. Dre

At 800 Million, Dr. Dre is rapidly catching up to his first Billion. Although he started off as a rapper, he is mostly known as the producer of many hits. He guided the careers of many Rappers including Eminem, Snoop Dogg, 50 cents and many others. Hip Hop sensation Kendrick Lamar is one of his more recent proteges. Many of these artists were signed by his label, Aftermath records. His wealth consists of the many investments he made in real estate, including a $40 million mansion.  With Jimmy Lovine of Interscope Records, he co-founded Beats Electronics through which the headphones called Beats by Dr. Dre was created. In 2014, he sold Beats Electronics to Apple for a whopping three billion.