Ashlee Simpson Says She's 'Proud' of Sister Jessica Simpson for Writing Revealing New Memoir

Ashlee Simpson is one proud sister!
On Sunday, the “Pieces of Me” singer, 25, shared a touching note to her big sister Jessica Simpson, praising the 39-year-old songstress on the publication of her revealing new memoir, Open Book. 
Just over the weekend, Jessica’s book landed at No. 1 on the New York Times‘ best seller list.
“I am so very proud of my beautiful, brave, kind, loving sister!!!” wrote Ashlee, alongside a photo of the book’s cover. &ldqu