Davis writes in "The Soundtrack of My Life" that he hadn't been repressed or confused during his marriages and that sex with a man "provided welcome relief."
He also writes that he started dating a man from 1990 to 2004, which he says was a "tough adjustment" for his son Mitchell. He says after "one trying year," he and his son worked things out. Davis is the father of three children.
Davis is the chief creative officer of Sony Music Entertainment. He writes that he's been in a "strong monogamous relationship" with a man for the last seven years.
Davis' new memoir also hit a sour note with singer Kelly Clarkson, who accuses the music mogul of twisting the facts about their disagreements - over her hit "Since U Been Gone," among others. She refuses to be bullied, the Grammy winner writes.
It's one of this decade's most successful pop hits. But now the platinum-selling anthem about a bitter breakup is the focus of an even more bitter battle. Clarkson came out swinging online late Tuesday accusing her former producer of "spreading misinformation" in his memoir.
In the book, Davis says Clarkson, who won "American Idol," didn't want to include the now hit-song "Since U Been Gone" on her 2004 album. He says when he insisted she, "burst into hysterical sobbing."
Clarkson says the only time she cried was when she played Davis the song "Because of You," which she co-wrote That track became a hit, but Clarkson says Davis told her she was a "[expletive] writer who should be grateful for the gifts that he bestows upon me."
"It's definitely clear she has a vivid memory and strong recollection, and she wanted to make that known," said Raha Lewis, People, staff writer.
"I believe in the future of music. I would take it seriously. I believe in hard work," Davis said.
Davis said he isn't discounting Clarkson's hard work, just her version Of what happened.
"I am truly very sorry that she has decided to take issue with what I know to be an accurate depiction of our time together," he told "Good Morning America" anchor Lara Spencer.