Jessica Simpsonis celebrating her birthday in style!

The mother of three marked her 39th year with a glamorous pool party, rocking a leopard print bikini and beach cover-up and some oversized jeweled sunglasses.

“39 is all mine!!!” the singer said in a caption for anInstagram photoposted Wednesday. Her glitzy look was topped off with gold hoop earrings and her long blond hair in a half-up, half-down ‘do.

Inanother post, she said, “39 with my ladies 🎉” underneath a photo of herself flashing the peace sign along with 18 of her friends.

Jessica Simpson/Instagram

Jessica Simpson

Jessica Simpson.Jessica Simpson/Instagram

Jessica Simpson

Simpson’s birthday bash comes on the heels of other news worth celebrating: theannouncement of her memoir, which will be released next February.

“I have been approached many times over the years about writing a book. It never felt right to me until this very moment,” the business mogul told PEOPLE on Wednesday. “I have always felt that one of my God-given purposes in this life is to inspire people.”

Simpson has had an eventful year.

In addition to her book deal news, she and husband Eric Johnson welcomed their third child, daughterBirdie Maein March. They are also parents to sonAce Knute, 6, and daughterMaxwell “Maxi” Drew, 7.

The singer with her family.Jessica Simpson/Instagram

Jessica Simpson

The three kids already seem to have aspecial bond, if photos that Simpson shares of the siblings are any indication.

“I love the way he loves her 💕 #ACEKNUTE #BIRDIEMAE” she captioned a recent photo of Birdie and her big brother. She shared another photo of sisters Maxi and Birdie, similarly captioning the photo, “I love the way she loves her 💕 #MAXIDREW #BIRDIEMAE”

source: people.com