Her former Mickey Mouse Club buddy, Britney Spears, used to be very, very hot. As she's transformed herself into a perpetually pregant airhead with REALLY awful taste in men, however, Brit's looks have gone down the toilet faster than post-meal food from the stomach of Lindsay Lohan.

Christina Aguilera has had the opposite fate, fortunately for men across the world. As shown here in our second instance of Classic Celebrity Pictures, X-tina has changed with the times - but managed to maintain that beautiful, sexy, my-goodness-we-need-new-pants look:

Posted in: Christina Aguilera

Christina Aguilera Biography

Awesome Aguilera Christina Aguilera: The dirrrty one always has a place in our hearts. She's a great, great singer. The beauty married Jordan Bratman a... More »
Born
Birthplace
Pittsburgh, Pennsylvania
Full Name
Christina María Aguilera

Christina Aguilera Quotes

It's kind of hilarious! I've never fit into an E-cup before. I look at my husband and go, 'Guess what size this bra is?' And when I tell him, he's just amazed. We keep the tags that prove it, to look back for memory's sake!

Christina Aguilera [on her breastfeeding bust size]

Oh, my God, candy! I had a huge craving for candy toward the end of the pregnancy, from Starbursts to Skittles. I actually took a picture of myself with my big belly in a little lingerie top, surrounded by bowls of the candy I like

Christina Aguilera [on pregnancy cravings]