Michael Jackson was as famed for his high-pitched voice as for his plastic surgery. And as the story goes, his softly-spoken manner was a direct result of his father Joe allegedly forcing him to undergo 'chemical castration' when he was just 13 in a bid to delay puberty and keep his singing voice high.
Doctor Conrad Murray - who was convicted of the star's involuntary manslaughter - claimed Jackson told him he'd been given hormone injections as a teenager, but made him swear never to tell anyone.
Murray, 67, first made the claims in his 2016 self-published book This Is It! The Secret Lives of Dr Conrad Murray and Michael Jackson.
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