Makaveli (a.k.a. 2Pac) 'The Don Killuminati: The 7-Day Theory'

Released under the stage name Makaveli, The Don Killuminati: The 7-Day Theory is the fifth and final album by Tupac Shakur and the first in an impressive chain of discs to released posthumously. (In fact, Tupac's post-death output has prompted some conspiracy theorists to suspect he's still alive.) Although the album was written, recorded and mixed in just seven days, it's widely considered a classic by critics and hip-hop heads alike.