Megan Fox stunned at the premiere of "This Is 40" last night in Hollywood -- and she's made a major transformation during her 11 years in the biz.
In that short time, the 26-year-old has gone from a "7th Heaven" star's arm candy to "Transformers" sexpot to married mom while also playing with her look.
And it's been a fun ride to watch, hasn't it?
The gorgeous gal has changed her personal style a lot through the years ... and there have been some major fashion and beauty hits and misses.
Check out the gallery above to see how she's evolved since starring alongside the Olsen twins in "Holiday in the Sun" in 2001.
And re-live her movie debut below:
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