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Ozzy Osbourne battled drug and alcohol abuse for decades. It even helped cause his firing from Black Sabbath in 1979. He later reunited with the band several times, including as recently as 2011.
Ozzy revealed in a Facebook message on April 15, 2013 that he had suffered a relapse the previous March and that he was 'in a very dark place' and had behaved badly to his family. The rocker had published the post amid reports of a breakup between himself and wife Sharon and said that the two were not divorcing.
(Pictured: Ozzy Osbourne talks about reuniting with Black Sabbath for a new album and 2012 world tour.)
(Deraney Media Consulting)