Actress and former Miss America Vanessa Williams can now add author to her résumé with her book You Have No Idea, which she co-authored with her mom Helen. "I turn 50 next year and it's a time to reflect," she tells Rachael. "I've had a lot of offers to write a memoir, and every time I sit down and think, 'What am I going to write?' I'd always call my mom ... there's a big part of my life that my mother has a big part of in terms of warning me, in terms of being there for the victories and supporting me through the defeats, and it's important."

Watch the video above to see Vanessa and her mom each reveal the most shocking thing they learned about the other while writing their book!