When she first burst onto the scene, most people believed she was way too skinny. In fact, many magazines used to tell Christina Aguilera to eat more and exercise less. But that all changed when, after giving birth to her first child, Christina Aguilera started putting on weight. Clearly, exercising less, not performing as much as usual and indulging in the wrong type of food made Christina put on more weight than ever. However, the star is now back to a much healthier weight and is looking fantastic again.