Jon Wiederhorn

Out of retirement and into the studio.

On Sept. 28, 1978, Black Sabbath released 'Never Say Die!,' their final album with Ozzy Osbourne for three decades.

Their breakthrough album.

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

Black Sabbath, with Ronnie James Dio back in the band, released their 'Dehumanizer' album on June 22, 1992.

Take a look back at Municipal Waste's groundbreaking album 'The Art of Partying.'

On May 15, 1987, Motley Crue released their 'Girls, Girls, Girls' album.

It'd be the last with Bruce Dickinson for a while.

On May 10, 1983, a metal revolution was underway.

On April 27, 1979, after various attempts to get Ozzy back on the team, Black Sabbath fired their lead singer.