21. El-P, I'll Sleep When You're Dead (2007)
Label: Definitive Jux
Ever since Nas' "New York State of Mind," hip-hop has equated sleep with death, but the scary, stalkerish threat that identifies El-P's second solo LP turns it on its head. Well-named songs like "Up All Night," "Habeas Corpses (Draconian Love)" and "Tasmanian Pain Coaster" extend the insane, insomniac vibe of the title with post-apocalyptic production and paranoid rhymes.