Lynne Spears' Startling Tell-All

As the mother of troubled pop star Britney Spears and teen mother Jamie Lynn Spears, Lynne Spears has had to overcome her share of parenting challenges.

In her new tell-all book about her life as the mother to famous children, Through the Storm, Lynne shares her story of the tough road she's been down with her family, as well as her hopes for the future.

The Associated Press, which got an early look into the much buzzed about tell-all, to be published Sept. 16, reports today that the book includes stories from Britney's singing and dancing childhood up through her meteoric rise and all the way to her recent pill-addled, head-shaving escapades.

Lynne details her feelings of powerlessness and a loss of control throughout Britney's skyrocketing fame, marriages, children and ensuing highly publicized custody battles, as well as her struggle with drugs in her private life, says the AP. Lynne reveals that Sam Lufti, a constant presence in  Britney's life at the time, said he was grinding up pills and adding them to Britney's food.

The AP also reports that Lynne felt like she had been "punched in the stomach" upon learning Jamie Lynn was pregnant at 16.

After two trips to the hospital this year, Lynne writes that Britney was finally given the care she needed, and that it was a "turning point" for their family.

A turning point, for sure, if Britney's glowing, fit and levelheaded apperance at MTV's VMA awards is any indication of the care she's been receiving with the help of her family.

For more on Lynne's startling tell-all and for Britney's shocking reaction, check out the new issue of OK! on sale Thursday!