Get ready for Baby 101, Jamie! The littlest Spears just had her own little one in Mississippi. Jamie Lynn Spears and her fiancé Casey Aldridge welcomed baby girl Maddie Briann this morning. Cute! At 17, raising a newborn will be tough, but her Zoey 101 co-star, Erin Sanders, thinks she'll be a cool mom. "She is just a very good-hearted and warm person," he told People magazine. "We would always hang out on the set and she is a lot of fun, so I think she's going to be an easygoing, fun mom." We just hope JLS isn't taking parenting tips from you know who!

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