Black Sabbath's Ozzy Osbourne recently passed away on July 22, 2025, at the age of 76. He was at his Buckinghamshire home with wife Sharon Osbourne. While social media users have been speculating about Ozzy's cause of death, the final reports hadn't come out yet. Now the official cause of death has been confirmed as a heart attack, along with Parkinson's disease and several heart issues. His daughter, Aimee Osbourne, has filed the death certificate in London. It states acute myocardial infarction or a severe heart attack and coronary artery disease as the primary causes.