"Reign in Blood" is the third studio album by the American thrash metal band Slayer, released on October 7, 1986. It is widely regarded as one of the most influential albums in the heavy metal genre, known for its aggressive sound and fast tempos. The album features iconic tracks like "Angel of Death" and "Raining Blood," showcasing the band's signature blend of speed and intensity. The album's themes often explore dark and controversial subjects, including violence and death. Produced by Rick Rubin, "Reign in Blood" is notable for its concise tracklist, with most songs under three minutes long, contributing to its relentless energy and impact on the metal scene.