The Ultimate Sin is the fourth studio album by the English heavy metal singer Ozzy Osbourne, released on 27 January 1986. It is the second and last of Osbourne's albums to feature lead guitarist Jake E. Lee, the first to feature drummer Randy Castillo, and the only album to feature bassist Phil Soussan, who co-wrote the album's hit single "Shot in the Dark". It is also Osbourne's last album to feature his classic logo on the cover until 2010's Scream.