Spears' youngest daughter, Ivey Joan Watson, was born on April 11, 2018. She is Spears' first child with husband Jamie Watson, whom she married in 2014. In an exclusive interview with People, the mom of two opened up about the significance behind Ivey's middle name. "Her middle name, Joan, is to honour my Aunt Sandra, who passed away 10 years ago from ovarian cancer. She was the most graceful woman I've ever known," she explained. She may be under 3 years old, but Miss Ivey has already been strutting around TV film sets with her mama.