Mini-Britney?
The youngest Spears girl is a star already, celebrating her 5th birthday in style with mama Jamie Lynn Spears, the 21-year-old sister of Britney Spears. The young mom was only 16 years old when she gave birth to daughter Maddie, but she seems to be thoroughly enjoying motherhood, posting lots of Instagram pictures of her adorable little girl, tagging one of them "#myworld."