Slayer is commemorating the 40th anniversary of their seminal album 'Reign In Blood' with a pop-up shop, a limited-edition liquid-filled vinyl release, and a celebratory performance in Mexico City, while drummer Dave Lombardo reflects on the album's initially mixed reception. The band's legacy is further highlighted by tributes to former member K.K. Downing and the inclusion of Tom Araya in the upcoming GTA VI heavy metal radio station. The anniversary also features retrospectives on the album's controversial history and a trivia quiz for fans.