Jamie Lynn Spears gave birth to a baby girl, named Maddie Briann, in Mississippi this morning. Her fiancé Casey Aldridge was there with her along with her family including Britney, who arrived into town yesterday. The infant was born at about 9:30 a.m. Jamie Lynn and her daughter are both "healthy and happy." Congrats to the new family and welcome to a new Spears girl!

Source and Splash News Online