Brooke Shields' new memoir, "Brooke Shields Is Not Allowed To Get Old," is out now, and the 59-year-old model and author shares it all, opening up about her first marriage to tennis pro - Andre Agassi.

Brooke Shields is getting real about the toll body image issues have taken on her over the years. In her new memoir, “Brooke Shields Is Not Allowed to Get Old,” the “Mother of the Bride” star, 59, claimed her ex-husband Andre Agassi left her spinning “a bit” after giving her a backhanded compliment about her weight.

Shields was only a newborn when she appeared in her first TV ad, setting off a chain reaction of events that would see her become a generational touchstone of beauty and youth. Her candid new book is a surprisingly optimistic take on aging full of lessons in self-love and self-advocacy,

The biggest takeaways from Brooke Shields' new memoir about motherhood, menopause and society's view of aging women, especially in the spotlight.

Brooke Shields always keeps it real when it comes to aging. Shields, 59, opened up about getting older in the public eye while making an appearance on Good Morning America on Monday, January 13, while promoting her memoir,