Jamie Lynn Spears was in proud mom mode as she documented her lookalike teen daughter Maddie going to junior prom over the weekend. The Zoey 101 alum, who is the younger sister of Britney Spears, had fans seeing double as she shared photos on Sunday of her 16-year-old mini-me looking all grown up in a sleeveless purple sequin-encrusted dress.

Jamie Lynn Spears' daughter Maddie is all grown up! On Sunday, March 30, the actress, 33, posted photos of her 16-year-old daughter dressed up in full glam for junior prom. The teen posed in a purple dress with a bedazzled bodice,