12/18/2012 08:00 am ET Updated Feb 17, 2013

Christina Aguilera Turns 32: See The Birthday Girl's Style Evolution (PHOTOS)

Whether she's channeling her inner "Dirrty" girl or Marilyn Monroe, there's no denying that Christina Aguilera is a true fashion chameleon.

Since breaking out into the late-1990′s pop scene with "Genie in a Bottle," the singer has channeled many different styles -- and worn a variety of eyebrow-raising numbers.

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