New tell-all shocker reveals ALL the secrets Oprah doesn’t want YOU to know! His other men – her other women  — The Big O  reveals all in shocking new book!

Oprah Winfrey is ready to publish her own tell-all book – and she’ll finally reveal the truth about her relationships with longtime companion Stedman Graham and best friend Gayle King.

Sources tell The ENQUIRER that the blockbuster autobiography will bare Oprah’s deepest secrets, including the sordid gay lie that’s dogged her longtime romance with Stedman and intimate friendship with Gayle.

The media mogul, who’s worth more than $2 billion, will also confess that she’s spent more than $5 million in the never-ending battle to control her weight, according to those familiar with the contents of the book.

But the book’s biggest bombshells involve the agony Oprah has endured over the gay rumors that began soon after she started dating Stedman, a handsome marketing executive, in 1986, sources say.

"Oprah has long shrugged off the persistent story that she and Gayle are lovers, and that Stedman was just a cover for their secret relationship," an insider divulged.

Oprah wrote her memoirs years ago, but shelved the book on the advice of family and friends, sources say. But she’s releasing it now to thwart the impact of Kitty Kelley‘s unauthorized book, Oprah: A Biography.

The poison pen author – who has skewered Frank Sinatra, the Bush family and Elizabeth Taylor in previous books – interviewed 850 people, including many once-loyal friends of Oprah, for the 544-page  exhaustive tell-all.

For the full story you won’t find anywhere else – pick up the new ENQUIRER on sale now!