It’s no secret that Michael Jackson and Prince were major rivals during their pop careers, but secretly recorded audio has revealed the King of Pop’s true feelings about the recently deceased superstar.

The audio, obtained by The Mirror, reveals Jackson was worried Prince would kill himself during tapes that were recorded for Jackson’s autobiography Moonwalker.

Jackson also said he thought Prince was ‘mean, nasty and rude’ while saying he didn’t like being compared to him at all.

Jackson said: “I have proven myself since I was real little. It’s not fair. He feels like I’m his opponent. I hope he changes because boy, he’s gonna get hurt. He’s the type that might commit suicide or something.

“He was so rude, one of rudest people I have ever met. He has been very mean and nasty to my family.”

Jackson could also be heard mocking Prince’s appearance at a James Brown tribute concert in 1983, where Prince fell into the crowd after leaning against a paper mache lamppost.

Jackson said: “He made a fool of himself. He was a joke.”

Jackson also had less than flattering things to say about his own family, calling Randy ‘hardheaded’ and saying Jermaine was ‘talented but lacking self-confidence.’

Saturday 25 June marked the seven year anniversary of Jackson’s death, when the musician went into cardiac arrest after overdosing on sedatives.