It was the heavy metal gig to, for many fans, end all heavy metal gigs as Ozzy Osbourne and Black Sabbath bade farewell to live performing supported by a host of legendary music acts in front of 40,000 fans. The group, formed in Birmingham in 1968, rocked out Villa Park in a homecoming gig that had created a huge buzz in the city in recent weeks.

In the wake of his death, Ozzy Osbourne’s Black Sabbath bandmate is shedding light on the quiet struggle behind the rock group’s final show. 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.