Pop star Aaron Carter has spoken out in defence of Michael Jackson and threatened to punch his accuser Wade Robson.

Robson was one of two men who spoke out in great detail accusing Michael Jackson of decades of child molestation and abuse in the controversial new documentary Leaving Neverland.

He recently mentioned Aaron Carter - brother of Backstreet Boys star Nick Carter - in a tweet, suggesting Carter had also been abused at the hand of Jackson.

In response to a tweet calling him a liar, Robson wrote: "I'm not alone, you ask @aaroncarter."

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Speaking to TMZ, Carter was incensed.

"He's trying to tie my name into this s**t? I'm not that guy. I'm not the one," Carter said.

"I might be a pop singer but I'm also from the f**king south, and you f**king come at me on some sour s**t, you're lucky I got something to lose now, because I would punch you in your face. I would, and then maybe I'd ask you, 'Eh, are you telling the truth?', but I'd punch you in your face first."

Carter also spoke about his own experiences with Jackson admitting to sharing his bedroom.

He said: "I remember having the time of my life with Michael. I hung out with Michael. I stayed at his house. I stayed in his bedroom... I was 15."

However unlike Robson, he called his experience: "Gentle, beautiful, loving and embracing" and said Robson was "stomping on" Jackson's grave by waiting until he was dead to come out with the allegations.

He also revealed that he was approached by producers of Leaving Neverland and was offered a six-figure sum, but told them to "go f**k themselves".