SOME of Barbra Streisand's long-hidden secrets will be bared in a new tell-all by her ex-boyfriend Hollywood producer Jon Peters -- who claims the beloved diva was sexually abused by a slimy movie mogul and had affairs with three of her leading men.

In the proposal for his memoir, "Studio Head," which was sold last month to Harper- Collins for $700,000, Peters writes he "wanted to kill" Ray Stark, producer of "Funny Girl" and "The Way We Were," when he learned that "Stark, an ogre of male chauvinistic casting-couch sexual entitlement, had molested both Lesley Ann [Warren] and Barbra when they were auditioning for him, and neither had ever really gotten over it." Streisand's publicist, Ken Sunshine, did not return repeated calls, nor did a rep for Warren.

Peters writes that "Barbra may have had her neuroses and insecurities, but getting men, the men every woman wanted, was not one of them." He claims she confided in him that she'd had "life-imitates-art affairs with Robert Redford on 'The Way We Were' and Ryan O'Neal on 'What's Up, Doc?' and had just ended another with Kris Kristofferson, then at his hunkiest" in "A Star Is Born." Reps for Redford and O'Neal didn't return our calls, and Kristofferson's rep had no comment.

The four-times-married hairdresser-turned-moviemaker also says he had a fling with a pre-"Basic Instinct" Sharon Stone, who "may have been a cyclone sexually, but a black hole where need was concerned . . . Not even [I] could turn her into the superstar she expected to be fast enough." A rep for Stone had no comment.

Peters, who produced "Superman Returns" and "Batman," says his other belt notches include Kim Basinger, Pamela Anderson, Nicollette Sheridan, Salma Hayek and Catherine Zeta-Jones. He brags he "became a Hollywood legend for seduction as much as production." via