Ozzy is haunted by the memory of touring South America with late Motorhead rocker Lemmy Kilmister last summer (15), when the fellow Brit told the Black Sabbath frontman they would both be dead "soon".

Lemmy died in December (15).

"I went down to South America with him last year, and he looked very frail," Ozzy told Rolling Stone. "He said to me, 'Soon, me and you are going to be dead forever'. He says, 'Aye, I lived my life the way I wanted to live it. Who wants to live to 99 miserable?' That was Lemmy. He was a great friend of mine."

Ozzy has paid tribute to his late pal by naming a stage at the Ozzfest Meets Knotfest event in September (16) after him.

Osbourne, 67, admits the major music deaths of 2016 have got him thinking about his own mortality in the midst of a marriage bust-up with his wife and longtime manager Sharon.

"Everybody's dying, you know," he added. "I go, 'I hope I don't die tonight!' It's like the year of the dying rock star, isn't it? And yet the (Rolling) Stones keep going on. Paul MCCartney keeps going on.

"When Prince died, I was like, 'Wow, what the f**k?' David Bowie, Lemmy. F**king hell, it's one a week... There's going to be some good equipment on sale soon."

Despite their rift, Sharon and Ozzy plan on working together for the foreseeable future, but the rocker's manager wife admits the Paranoid singer is beginning to think about retirement and he will call it a day soon after he wraps up his commitments with the reunited Black Sabbath, who will headline the Ozzfest Meets Knotfest festival in California.

"We'll continue until Ozzy finishes, and Ozzy won't be long behind them when he calls it a day...," she explained. "It's not going to be within the next year, but it's coming up. I don't want Ozzy singing Crazy Train at 75. I think it's best you go out before you hit that 70 and go out on top."