Kelly Osbourne has broken her silence following the death of her father, rock icon Ozzy Osbourne, with a poignant tribute that draws on one of their most memorable collaborations. On Thursday, Kelly took to social media for the first time since the family announced Ozzy’s passing, sharing the heartfelt opening line from “Changes,” the Black Sabbath classic she performed alongside her father in 2003.

“I feel unhappy,” she wrote on her Instagram Story, set against a plain black background. “I am so sad. I lost the best friend I ever had.”

The message marks Kelly’s first individual statement since the Osbourne family released a joint note confirming the legendary Black Sabbath frontman’s death. “It is with more sadness than mere words can convey that we have to report that our beloved Ozzy Osbourne has passed away this morning,” the family statement read. “He was with his family and surrounded by love. We ask everyone to respect our family’s privacy at this time.”

Ozzy Osbourne died on July 22 at the age of 76. While a cause of death has not been revealed, the singer had faced a series of health challenges in recent years. In 2019, he suffered a severe fall that required surgery, and in 2020 he publicly revealed his battle with Parkinson’s disease. Despite these setbacks, Ozzy continued to record music and make public appearances, determined to remain active in the rock world until the very end.

Kelly’s post resonates deeply, as “Changes” has long held a special significance for the father-daughter duo. Their 2003 duet version of the song became a chart success in the U.K. and remains one of the most personal moments in Ozzy’s storied career. The track, originally released by Black Sabbath in 1972.

Just days before his passing, Kelly had shared a video of herself and her baby son, Sid, having breakfast with Ozzy. In the short clip, the Prince of Darkness cheerfully greets the camera with a warm, “Good morning!”

Ozzy’s death also follows Kelly’s public frustration with false narratives surrounding her father’s health. In the weeks leading up to his passing, she addressed AI-generated videos circulating online that wrongly suggested Ozzy was “preparing for death.” Taking to Instagram, Kelly firmly denied the rumors, stating: “Yes, he has Parkinson’s, and yes, his mobility is completely different than it used to be, but he’s not dying. What is wrong with you?”

The news of Ozzy Osbourne’s passing has sparked an outpouring of grief and admiration from across the music industry. Tributes have poured in from fellow legends and longtime collaborators, including Slash, Elton John, Motörhead, and Madonna, as well as artists from newer generations like Yungblud and Post Malone. Elton John shared a heartfelt message on Instagram alongside an old photograph of himself with Ozzy, writing: “So sad to hear the news of @ozzyosbourne passing away. He was a dear friend and a huge trailblazer who secured his place in the pantheon of rock gods, a true legend.”

Known as one of the most influential figures in heavy metal, Ozzy’s career spanned over five decades. From his groundbreaking work with Black Sabbath to his successful solo career, he defined an era of rock music with his powerful vocals, outrageous stage presence, and enduring ability to connect with fans around the world. His impact stretched far beyond music, as the hit reality series The Osbournes introduced him to a new generation of fans, showcasing a softer and more humorous side of the rock star.