7. Dr. Dre
Dr. Dre racked up with his multi-million dollar headphone company, Beats By Dre. Not only did he top the annual Hip-Hop Cash Kings list by raking in $100 Million by doing business with HTC, but Dre brought Tupac Shakur back to life...sort of. He kicked off the summer at Coachella by performing with a holographic Tupac Shakur, that is still one of the most talked about moments in music.