Ozzy Osbourne’s death certificate finally reveals what killed him

Rock legend Ozzy Osbourne died of a heart attack, according to his official death certificate filed in London. The document lists the primary cause of death as an “out-of-hospital cardiac arrest” and “acute myocardial infarction.” It also notes contributing health conditions, including coronary artery disease and Parkinson’s disease with autonomic dysfunction.

The Black Sabbath frontman passed away at his home in Buckinghamshire, England, on July 22, aged 76. The certificate was formally submitted by his daughter, Aimée Osbourne, and was first reported by The Sun on Monday(August 6).

Osbourne, often referred to as the “Prince of Darkness,” had publicly disclosed his Parkinson’s diagnosis in 2020. In interviews earlier this year, he revealed he could no longer walk but emphasized that his voice remained strong.


Just weeks before his death, Osbourne performed one final time. He took the stage at Villa Park in Birmingham for a special concert titled Back to the Beginning. The evening included a solo performance followed by a brief but emotional reunion with his Black Sabbath bandmates, their first joint performance in over 20 years.

A private funeral service was held on July 25 at his Buckinghamshire estate. Family members and close friends attended the ceremony, including Osbourne’s former Black Sabbath bandmates and prominent figures from the music industry such as James Hetfield, Elton John, Yungblud, Marilyn Manson, Zakk Wylde, and Slipknot’s Corey Taylor. Thousands of fans gathered in Birmingham on July 30 for a public tribute procession, lining the streets to honor one of the most iconic figures in rock history.

Born in Birmingham in 1948, Osbourne rose to fame in the 1970s as the lead singer of Black Sabbath. The band is widely credited with pioneering the heavy metal genre. After launching a successful solo career in the 1980s, Osbourne became a household name once again through the reality TV show The Osbournes, which aired from 2002 to 2005.

Over the course of his career, Osbourne won five Grammy Awards, including Best Metal Performance with Vocal in 1994. He was inducted into the Rock & Roll Hall of Fame twice, as a member of Black Sabbath in 2006, and as a solo artist in 2024.

He is survived by his wife, Sharon Osbourne, and his children Jack, Kelly, Aimée, Louis, Jessica, and Elliot.