Seth Poppel/Yearbook Library; Steve Granitz/WireImage
Jennifer Davis
Nov 06, 2012 @ 9:00 am

Happy 24th birthday, Emma Stone! For the girl who first made us laugh in Superbad, Stone has grew into a Hollywood force, landing leading roles in Easy A, The Help, and The Amazing Spider-Man. And her looks have evolved as her career blossomed, bouncing between blonde, brunette, and her now-signature red hue. So, in honor of her big day, we're taking a look at her transformation—click through the gallery to see her most memorable looks.

MORE:Try on Emma Stone's Hair Styles• Emma and Her Mom Star in Revlon Ad• See Emma's Best Looks Ever!

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