Decades after his rise to heavy metal fame, the self-styled Prince of Darkness, his wife Sharon and their two then-teenage children Kelly and Jack starred in MTV's The Osbournes, pioneering what the show's producers describe as a "reality sitcom".

MacKay praised the merits of Osbourne’s music and the metal genre as “communal”. He referenced Daniel Levitin, an American-Canadian psychologist and neuroscientist, formerly of McGill University and authour of the book, This is Your Brain on Music.

Black Sabbath through a prolific solo career — how the heavy metal icon's music peppered the soundtrack of one writer's life.