Wade Robson, 36, has accused the late King of Pop of trying to anally rape him in a hotel room when he was a teenage boy.
The dancer makes the shocking claims in Leaving Neverland, a new Channel 4 documentary that lays bare graphic allegations of child sex abuse against Jackson.
In the documentary Wade, a former choreographer for Britney Spears and NSYNC, claims he was brought to Jackson’s LA studio before the alleged rape.
Wade watched Jackson rehearse for his HIStory World Tour in 1997 before they went to his hotel room.
He claims the pair “slipped back in the routine” of sexual contact having allegedly been abused by Jackson from the age of five.
Standing at 5ft 11in, Wade said encounter was a “whole different physical vibe” because he “had a major growth spurt”.
“I don’t remember how exactly it evolved to this or how it moved to this next stage,” Wade claims in the film.
“But what ended up happening is Michael tried to penetrate me in my anus with his penis.
“He was trying for a while and I guess he was able to for a bit. But it was really painful, too painful for me. So he stopped.”
“Michael tried to penetrate me”
A legal complaint, filed in 2016, alleges the Smooth Criminal singer attempted to “perform anal sex” on a teenage Robson, according to the Sun.
The attempt was “unsuccessful” but “penetration” did occur, the document alleges.
In Leaving Neverland, aired on Channel 4 and HBO in March, Wade claims he and Jackson “went back to our regular sexual routine”.
Jackson’s driver then dropped him off at his condo in Hollywood, California.
He added: “After it wasn’t working, after it was too painful for me, we went back to our regular sexual routine.”
Wade, host and executive producer of MTV’s The Wade Robson Project, famously testified to deny sexual contact with Jackson at his 2005 trial.
Jackson, who was charged with molesting 13-year-old Gavin Arvizo, was acquitted of all charges against him by a jury at the Santa Barbara County Court.
After Jackson’s death in June 2009, Wade said: “His music, his movement, his personal words of inspiration and encouragement and his unconditional love will live inside of me forever.”
Daily Star Online has contacted Howard Weitzman, an attorney who represents Jackson’s estate, for comment about the allegations made in the documentary. He has not responded.
Jackson’s estate released a statement on behalf of his family addressing the claims after the film was screened at Sundance.
“The creators of this film were not interested in the truth,” the family said in a statement.
“They never interviewed a single solitary soul who knew Michael except the two perjurers and their families. That is not journalism, and it’s not fair, yet the media are perpetuating these stories.
“But the truth is on our side. Go do your research about these opportunists. The facts don’t lie, people do. Michael Jackson was and always will be 100% innocent of these false allegations.”