The bassist did not specify which band member is ailing in response to a fan question about their absence from the Back to the Beginning lineup.

Ozzy Osbourne may have given his final performance, but he hasn’t yet given fans his final writings - or “Last Rites,” as he punningly puts it. His new memoir of that name will come out this fall, Hachette Book Group announced Thursday.

Ozzy Osbourne performed his final concert with Black Sabbath on July 5, 2025, at Villa Park in Birmingham, England, while sitting on a bat-themed throne. The 76-year-old rocker was diagnosed with Parkinson’s disease in 2019.