Victoria's Secret model Alessandra Ambrosio gave birth to her first child, daughter Anja, less than 3 months ago. And yet, you'd swear she didn't house a person in her body for 9 months because she was able to participate at the Victoria's Secret Angels Fashion Show on the weekend. She, of course, wore skimpy lingerie that left little to the imagination. So, how did the 27-year-old get rid of her baby weight?