Metallica released 'The Unforgiven' in 1991 on their self-titled fifth album, commonly called the Black Album. Written by James Hetfield, Lars Ulrich and Kirk Hammett, the power ballad moves from a fingerpicked acoustic opening to a crushing electric chorus, and its lyrics describe a man worn down by a life others planned for him. It became one of the band's signature songs and later spawned two sequels, 'The Unforgiven II' and 'The Unforgiven III'. Short clips of the intro now circulate as shorthand for regret, reckoning and dramatic confession.