The Queen of Pop turns 55 today -- but she still ain't dressing a day over 22.

Madonna's milestone birthday comes a good 30 years after her self-titled debut album was first released in July 1983.

And some things never change.

While her sound and personal style have both evolved through the years, she's managed to keep her body in tip-top shape and continues to shock with both her outrageous outfits (see above right) and on-stage antics.

Of the pop stars from the '80s and '90s, has Madge aged the best? See more in the gallery above!

Happy Birthday, Madonna ... and never forget:


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