Yes Madonna does have a brother and after a life-time of being overshadowed by his famous sister he is writing a memoir ‘Life With My Sister’ to get back at her. Someone is a little bitter.

Madonna’s brother, Christopher Ciccone, had a falling-out with his sister some time ago and has decided to collaborate with British journo Wendy Leigh on an exposé of his sister for Simon Spotlight Entertainment, an imprint of Simon & Schuster - and it’s going to be “brutal.”

“It’s extremely graphic and devastating,” said a source who declined to give details. “He wrote it on the sly without telling Madonna. They want to put it out before her lawyers can get a hold of it.”The book, due out July 15, has a massive print run of 350,000.

A dismayed friend of Madonna said, “We’d heard rumors, but didn’t realize he’d actually written it. He was there through the crazy years and has many stories to tell, I’m sure. He’s seen it all. Oh, my.”

Ciccone, a gay decorator/chef once described by Rupert Everett in Everett’s biography as “a solid raft for Madonna in the shark-infested waters” - was ditched by his sister after she hooked up with her now husband Guy Ritchie, who Everett said was “uncomfortable around queens.”

Adam Rothberg for Simon & Schuster said yesterday, “We don’t have anything to say at this time” - but then gave the story to the AP. Madonna’s rep declined to comment.