Jessica Simpson expecting third baby

Jessica Simpson is adding another member to her family.

The singer and fashion designer is expecting her third child — a baby girl! — with husband Eric Johnson, she announced on Instagram Tuesday morning with a photo set of her two kids Ace Knute, 5, and Maxwell “Maxi” Drew, 6, revealing the baby’s sex, People.com repeorts.

“SURPRISE … ” Simpson, 38, captioned the first image of her kids looking stoked to pop two large polka-dot balloons to find out if they were having a brother or a sister.

“This little baby girl will make us a family of five,” she added alongside a snapof her kids surrounded by smaller pink balloons, which presumably came from the large balloon that Ace was holding previously. “We couldn’t be happier to announce this precious blessing of life.”