Slayer: Repentless (Live At Wacken Open Air 2014)
Slayer performed at Wacken Open Air in 2014, and a live recording of their performance, specifically their song "War Ensemble", from that set, was included as a bonus track on the Japanese edition of their album "Repentless". The "Repentless" album was released in September 2015, but the live recording from Wacken was from the previous year.
