Jon Wiederhorn

One of the biggest albums ever.

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

It would be their last with David Lee Roth for quite some time.

On Jan. 8, 1991, Def Leppard guitarist Steve Clark died from an overdose.

Their first No. 1 album.

The last album with Randy Rhoads.

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

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

You wanted the best, you got the best!

In 1982, he was banned for the next decade.