Jessica Simpson celebrates her birthday in style!  The mother of three celebrated her 39th birthday with a glamorous pool party, a leopard-print bikini, a beach disguise, and oversized, jeweled sunglasses.
"39 is all mine !!! "The singer said in a caption for an Instagram photo that was posted on Wednesday. Her dazzling appearance was rounded off by golden hoop earrings and her long blond hair.
In another post she said, "39 with my ladies 🎉" (39 with my ladies) under a photo of herself that lit up the peace sign along with 18 of her friends.
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Simpson's birthday party is coming After other news worth celebrating: the announcement of her memoirs, which will be published next February.
"I've often been asked to write a book over the years. It has never felt right until then, "the business mogul told PEOPLE on Wednesday. "I have always felt that one of my God-given goals in this life is to inspire people."
"I hope that by telling all of my story and not restraining, I can help people to do so to overcome their fears and defeats their challenges as I work hard every day to master them, "she added. "I hope the readers will feel the love, the laughter, the tears and the truth on every page."
Simpson had an eventful year.
In addition to her book trade news, she and her husband Eric Johnson welcomed their third child, daughter Birdie Mae in March. They are also parents of 6-year-old son Ace Knute and 7-year-old daughter Maxwell "Maxi" Drew.
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The three children already seem to have a special bond when photos shared by Simpson from siblings are signs of it.
"I love the way he loves her. ACEKNUTE #BIRDIEMAE "She has taken a recent photo of Birdie and her big brother. She shared another picture of sisters Maxi and Birdie, who also signed the caption "I love the way she loves them." (#MAXIDREW #BIRDIEMAE)