We want to know who you think is the game's BIGGEST BOSS! We've worked our way around the U.S. and narrowed it down to the top 4 from the East Coast, West Coast, Midwest, and South. This final round takes the winners from each region — Jay Z, Dr. Dre, Eminem, and T.I. - and then pits these titans against each other. Only your votes can keep your favorite ahead of the competition. Vote now!