2Pac’s 'Greatest Hits' is a posthumous double-disc album originally released on November 24, 1998. The album’s non-chronological sequence focuses on the highlights of 2Pac’s career. Twenty one of his most popular tracks are accompanied by four previously unreleased songs: “God Bless the Dead,” “Unconditional Love,” “Troublesome ’96,” and the Grammy-nominated song, “Changes.” The original mix of “California Love” makes its first proper album appearance after initially only being available as a single. 2Pac’s 'Greatest Hits' remains the best-selling rap greatest hits compilation of all time.