His mask made him an enigma, his lyrical play a legend. And the magnum opus of his career was his partnership with Madlib, where MF DOOM became the supervillain/superhero that made the Madvillain project so unique and genre-busting. In our August 2014 cover story, we talked to Madlib about the art of the alter ego, but in so many ways we were talking about DOOM. In the 2004 video for "All Caps," directed and animated by James Reitano for TFU Studios, MF DOOM transcended hip-hop into something all together otherworldy. He was a comic hero. RIP, to the one-and-only, MF DOOM.