When people ask who the greatest rap producer of all time is, you expect to hear the name Dr. Dre. From his humble beginnings with the World Class Wreckin' Cru, to his brash coming out party with N.W.A., to his own phoenix-like rise as a solo artist, and now as a mentor to some of the greatest recent talent in rap, the Compton-born producer has never eased his stranglehold on the game. In 2014, he's changed the game once more.

Recently, it's been hard to escape the news of the deal between Apple and Beats By Dre, which is a whopping $3 billion. In the wake of the deal, Dre is set to become the first hip-hop billionaire in the world. Before Forbes plays the numbers game, we thought we'd do a little digging to find out some of the lesser-known facts about his life. Take a trip down memory lane as we uncover 25 Facts You Probably Didn’t Know About Dr. Dre.