Osbourne died on Tuesday at 76, just weeks after he and Black Sabbath performed at their farewell Back to the Beginning concert earlier in July.

Tony Iommi, Black Sabbath guitarist and co-founder, told UK broadcaster ITV that Osbourne was “frustrated” during the band’s farewell concert on July 5. The heavy metal icon died less than three weeks later, on July 22, at age 76.

Ozzy Osbourne’s Black Sabbath bandmate Tony Iommi is sharing his memories of the late rocker. Osbourne died at age 76 on Tuesday, July 22, following a battle with Parkinson’s disease. Just weeks before his death,