In the late summer of 1991, Metallica unleashed an album that would change their fortunes forever. Their fifth album, a self-titled record lovingly nicknamed ‘The Black Album’ by fans and critics alike, pushed the band from being a successful thrash metal band to the big leagues. The record made them a band with a record that was far broader in appeal and helped by a handful of hit singles, the album went on to sell tens of millions worldwide.