Singer Christina Aguilera is currently the pop tart on top from the Britney Spears and Jessica Simpson crowd that all got started around the same time.  Aguilera went through her own wild streak about three years ago as X-Tina. But since her marriage to Jordan Bratman in 2005 she has matured and become classy again. She is the most talented of the three singers and is also the most beautiful….at least for now. She also is the only one who has yet to be divorced.