Jessica Simpson [1] is going to be a mom again! On Tuesday, the singer and fashion designer announced that she is expecting her third child [2], a baby girl with husband Eric Johnson [3], with two sweet posts on Instagram. "SURPRISE . . ." she wrote alongside the first photo of her daughter Maxwell [4] and son Ace holding balloons, before captioning the second shot, "This little baby girl will make us a family of five. We couldn't be happier to announce this precious blessing of life." Congrats to the happy pair on their growing family!