This weekend, stars like Jessica Chastain and Rooney Mara will make their first trip down the red carpet at the Academy Awards ... but for others, it's a walk they've made many times before.

While the perfect dress is key, so is the perfect hairdo.

Before Oscar regulars like Charlize Theron, Penelope Cruz, Jennifer Lopez and Angelina Jolie strut their stuff again on Sunday, we're taking a look back at their dos from years past.

Check out their hair-volutions in the gallery above ... and vote for your favorite look!

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