Jon Wiederhorn

Their 14th album.

It was supposed to be a Tony Iommi solo album.

On Dec. 3, 2015, the iconic Stone Temple Pilots singer died while on tour.

On Nov. 1, 2011, Lou Reed and Metallica released their perplexing collaboration, 'Lulu.'

On Sept. 27, 1986, Metallica's Cliff Burton was killed in a bus crash.

On Aug. 12, 1991, Metallica released their biggest selling disc, known as 'The Black Album' to fans.

On July 17, 1982, Judas Priest saw their star rise with the release of the 'Screaming for Vengeance' album.

On Sept. 20, 1980, Ozzy Osbourne delivered his first solo album, 'Blizzard of Ozz.'

One of metal's most important albums.

On Sept. 17, 1991, Ozzy Osbourne reached a career turning point with his solo disc 'No More Tears.'