Black Sabbath frontman Ozzy Osbourne, 75, has been battling chronic pain and neck issues and has been diagnosed with Parkinson's Disease.

In a candid revelation, Ozzy Osbourne discusses facing substance abuse again, specifically with marijuana, while dealing with health issues. The Black Sabbath frontman shares that he's trying to keep this from wife Sharon,

Ozzy Osbourne still smokes marijuana - but hides his habit from wife Sharon Osbourne.

The Black Sabbath rocker, who has struggled with drugs and booze addiction in the past, admits he still takes a bit of marijuana from "time to time"

Former Black Sabbath singer Ozzy Osbourne, 75, has battled alcohol and drug addiction most of his life but praises wife Sharon, 71, for making sure he doesn't go back to his bad old ways