Ask anyone who springs to mind when the words 'heavy metal' are mentioned, and chances are they'll say Black Sabbath. The genre-defining outfit from Birmingham emerged at the genesis of the sound, and across their career they've remained one of the most influential bands of the ever-expanding metal movement overall.
Much of their influential status hails from the early days, in the first decade of their career when they were fronted by one John Michael "Ozzy" Osbourne.
The Prince of Darkness remains an indomitable figure in world music, one of the most recognisable men in rock and roll to this day - and it's hard to deny that his tenure at the front of Sabbath, alongside guitarist Tony Iommi, bass player Geezer Butler and drummer Bill Ward, has enshrined him into the history books.
But just which of the group's albums led by Ozzy - eight in the seventies and a lone farewell album in 2013 - are the best of the bunch?
We've run our eye over the competition, picking standout tracks to reach a conclusion that feels right. What is the best Ozzy-fronted Sabbath record?
Something of a culture vulture, Mr Steel can historically be found in three places; the local cinema, the local stadium or the local chip shop. He is an avowed fan of franchise films, amateur cricket and power-chords.