Jack Osbourne recently got candid and made shocking claims about his father Ozzy Osbourne’s death.

For those unaware, the Prince of Darkness passed away at the age of 76 on July 22, 2025, in Jordans, United Kingdom.

According to the New York Times, Ozzy’s daughter, Aimée Osbourne, confirmed that his cause of death was a heart attack and that he suffered from artery disease in addition to Parkinson’s disease for years.

Calling to mind the final morning of the English singer and songwriter’s life, Jack told Radar Online that his father’s death was sudden as his family did not expect it.

He said Ozzy’s last day was like any other day and “it was a few days after I got back (to Britain) that he passed, and we were… even the morning that he passed, it was like, it wasn’t anything dramatic at all.”

The 40-year-old shared, “He was up, he was doing his thing, had some breakfast, and that was it.”

Even though the Black Sabbath frontman had been battling health issues for a long period, Ozzy’s family had no clue the day of his demise would come out of nowhere.

Jack noted, “Obviously, everyone knew he was sick, but it wasn’t… he was really gearing up for the (Black Sabbath final) show, so he was exercising a lot and moving around.”

“He was fired up. But yeah, we weren’t expecting it to be as quick as it was. I just think he was done… I do think we have a choice, to a degree,” the Portals to Hell star quipped.

It is worth mentioning that the tragic news of Ozzy Osbourne’s death came just a few days before Black Sabbath’s final performance in Birmingham.