After transforming from teen princess to pop vamp, Christina Aguilera revealed a more glamorous, mature persona as she settled happily into marriage with music exec Jordan Bratman.  Shortly before the couple's second anniversary, the diminutive pop diva confirmed rumors of her pregnancy, and on Jan. 12, 2008, she gave birth to son Max Liron Bratman.  (David Youdells/Headpress/Retna Ltd.)