After posting a preview of the track online over the weekend, Avenged Sevenfold has now released the full brand new song called “Mad Hatter,” which the California band recorded for the soundtrack of the Call Of Duty: Black Ops 4 video game. “Mad Hatter” will also be included on Avenged Sevenfold’s upcoming EP, Black Reign, which has now been set for release this Friday. The effort will contain all four songs the band has written and recorded for the Call Of Duty: Black Ops franchise.