Jamie Lynn Spears' 16-year-old daughter celebrated a major milestone — while looking identical to the 'Zoey 101' alum.

Jamie Lynn Spears recently gushed over her 16-year-old daughter Maddie, whom she shares with ex-fiancé Casey Aldridge, going to her junior prom.

Jamie Lynn Spears shared several photos of her daughter Maddie, 16, ahead of her junior prom on Instagram on Sunday, March 30. Maddie looked glamorous in a sparkly lilac gown as she attended the event ...

The 16-year-old, who Jamie Lynn shares with ex-fiancé Casey Aldridge, looked stunning in a shimmering, lilac Sherri Hill gown.

Sweet Magnolias actress Jamie Lynn Spears' eldest daughter, Maddie Briann, who she shares with ex-fiancé Casey Aldridge, ...

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 ...

completing her elegant look with a bouquet of flowers. In a series of snaps shared by Jamie Lynn, 32, on Instagram, Maddie posed with her friends, her prom date, and her dad, capturing the special ...

Jamie Lynn Spears' 16-year-old daughter Maddie Watson—who she shares with ex Casey Aldridge—wore not one, but two Legally Blonde-inspired looks for her high school homecoming court.

Related: Jamie Lynn Spears' Daughter Maddie, 15, Looks All Grown Up in Prom Night ... “I don’t feel like a young mom at all now, but I guess that’s because I had my first daughter so very ...

Jamie Lynn Spears is celebrating ... 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 ...