was into men, not boys - and masqueraded as a woman with his lovers, a new book claims.
That's the most sensational nugget in "Unmasked: The Final Years of Michael Jackson," a tell-all by celebrity biographer Ian Halperin
obtained by In Touch magazine.
"Michael would dress up as a woman," Halperin wrote of the trysts.
He said the star once picked up a construction worker in Las Vegas
and swore him to secrecy.
"The lover admitted Michael made him sign a confidentiality agreement," the book states.
Halperin's book, which hits stores as the world still reels from Jackson's death, asserts that ex-wife Lisa Marie Presley
and galpals like Brooke Shields
and Tatum O'Neal
were his beards.
Jackson never had sex with second wife Debbie Rowe
, so "none of Jackson's three kids are his biological children," an "insider" told the author.
Halperin also contends that Jackson is no pedophile and may be a blackmail victim. He claims to have documents proving Jackson's nervous insurance company forced him to pay millions to a teen who accused the singer of molesting him.
Jackson "collapsed in hysterics when he found out he had to do that," the "insider" told Halperin.