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.

"He said he would be coming to Birmingham again … We were hoping to see him this week," the rocker's two surviving sisters Jean and Gillian recalledOzzy Osbourne’s sisters are sharing memories of their final reunion with the late rocker.