Shania Twain Tell-All Book

Shania Twain — in cooperation with Atria Books, an imprint of Simon and Schuster — has inked a deal to bring her “against all odds” rise to fame to the pages of a tell-all autobiography.

The Grammy winner — who shot to fame in the 1990s with hits like Man! I Feel Like a Woman! — will end her past few years of self-imposed exile by penning a memoir that will reveal everything about her incredible life including details ex-husband Robert “Mutt” Lange’s affair with her friend Marie Anne Thiebaud, which ultimately ended their 14-year marriage in May 2008. Shania will also chronicle her “challenging and sometimes shockingly painful upbringing” in rural Ontario, Canada and the “tragic death” of her mother and stepfather.

“There have been moments in my life I was concerned by the reality that tomorrow would never come,” she says in a release issued to the press on Wednesday. “Recently I experienced one of those moments to an intensity that brought on a sudden urgency to document my life before I ran out of time, before I had the opportunity to share an honest and complete account of my life, in my own words.”

Shania added: “There are times in your life that are meant for reflection, and this was one of them. I began writing this book with a sincere respect for the past, present and future as something never to be taken for granted.”

Shania, 45, will debut her own show on Oprah Winfrey’s new OWN network in 2011.

The yet-to-be-titled memoir will be published in Spring 2011.