Ian Gillan

When Black Sabbath hit the road to promote their Born Again album in 1983, one thing after another went wrong.

Blow out the candles, all you rock stars celebrating birthdays in August.

The band featured an array of singers during its decades of touring.

There was reason for excitement, given the band's resurrection behind Ozzy Osbourne's first replacement, Ronnie James Dio.

Write off their obscure and latter-day records at your own peril.

He actually submitted a resignation letter to the band while still on tour promoting 1973's 'Who Do We Think We Are.'