A historic duet featuring Judas Priest and the late Ozzy Osbourne will soon hit the airwaves. The track puts a fresh spin on Black Sabbath's "War Pigs," with both singers swapping lines back and forth. Ozzy and Halford alternated singing the lines of the song in an amazing duet. The first Priest version of "War Pigs" dropped on July 2. This new "War Pigs" track marks the team-up between these British metal titans.