Sarah Michelle Gellar and Freddie Prinze Jr. are officially parents. Over the weekend, Gellar gave birth to a baby girl named Charlotte Grace Prinze. The 32-year-old Gellar and the 33-year-old Prinze met in 1997 on the set of the teen horror flick "I Know What You Did Last Summer." They married in 2002 after dating for two years. For the couple's fifth wedding anniversary, Gellar legally changed her last name to Prinze.