30 Facts About METALLICA's 'Black Album' You May Not Know For Its 30th Anniversary

Metallica's Black Album will celebrate 30 years this week, and we're counting down 30 facts you may not know about the legendary recording. From shotguns and punching bags, to Bob Rock's son on the album and left over Master Of Puppets riffs, we take you on a journey of why this is one of the greatest albums in metal history.