United Kingdom, Sept. 29 -- Ozzy Osbourne's producer has described his shock at the death of the rock icon.

Andrew Watt spoke out after Ozzy died aged 76 on 22 July, only weeks after what became his final performance with Black Sabbath.

Speaking to Rolling Stone, the producer reflected on the Birmingham concert, Back to the Beginning, which took place on 5 July and said the last weeks of the singer's life now felt surreal.

Andrew added: "Everything was normal. And the next day the news was just a giant shock."

He described Ozzy's last show as "unbelievable".

Andrew said: "At this current moment, it feels like a dream sequence. The whole last month of his life feels like a dream. I had been in London working on a project, and going to...