After his first group KMD's sophomore album 'Black Bastards' was shelved by Elektra in 1994, and one half of the sibling rap duo passed away, surviving frontman Zev Love X slowly mutated into the supervillain MC known as MF DOOM. The 1999 release of 'Operation: Doomsday' marked MF DOOM's official debut, reintroducing a mysterious figure who would soon become one of underground rap's greatest voices.