Madvillain, Madvillainy (2004)

Label: Stones Throw

Madlib and MF DOOM's classic wasn't meant for the radio, but it was too good to be kept to the underground. While Jay-Z, Outkast, and Eminem were dominating the charts, Madvillain ignored all that and put together this dusty, weeded up, 22-song masterpiece that stood alone and brought us all into its own little world. Madlib and DOOM are two artists so weird and outside the realm of your typical hip-hop that their collaboration never seems out of style. Maybe that's why listening to this album never gets old.