Jamie Lynn Spears is celebrating a milestone moment for daughter Maddie. Spears, 33, shared a carousel of photos via Instagram on Sunday, March 30, featuring Maddie, 16, in a floor-length lilac Sherri Hill dress with a thigh-high split. Maddie paired the look with metallic Christian Louboutin heels, styling her hair in a half-up, half-down 'do. In one image, Spears posed with Maddie, daughter Ivey Joan, 6, and husband Jamie Watson. (Spears and Watson tied the knot in 2014 after she split from ex-fiancé and Maddie's dad, Casey Aldridge.) "Junior prom💜☂️," Spears captioned her post. Courtesy of Jamie Lynn Spears/Instagram In November 2024, the Zoey 101 star celebrated Maddie's commitment to college for softball . "All in my feels, bc my baby girl has committed to furthering her athletic & academic career at the University of Southern Miss!" Spears wrote via Instagram at the time. "I can remember it like it was just yester...