Prince of Darkness (Ozzy Osbourne album)

Prince of Darkness is a box set of four CDs by Ozzy Osbourne released in 2005. The first two CDs are Osbourne's solo work containing various studio recordings, live tracks, b-sides, demos and outtakes, and the last two CDs are collaborations, on disc three, and cover songs, on disc four. The cover versions were recorded for this box set compilation, but were released on a stand-alone album entitled Under Cover later in the year.