The actress' ever-changing hair is almost as illustrious as her career. Here, a look at the styles that helped shape the star's signature look.
After shaving her head for 2006's V for Vendetta the actress told Time magazine, "It's quite liberating to have no hair. I can't stop rubbing my head. It's so soft, I might keep it for a while."
Shoulder length curls and babydoll dresses make a whimsical pairing. The actress appropriately wore both at the premeire of Mr. Magorium's Wonder Emporium.
Portman sported this perfectly coiffed look at the V for Vendetta premeire in 2006.
Loose curls bring charm to this bedhead inspired bob.
Nothing says old Hollywood like perfectly sculpted waves and tucked-away bangs.
Portman stepped away from her natural curls in 2002 and opted for this shaggy bob instead.
A shiny, sleek blowout tops off the actress' Late Night with David Letterman ensemble.
Portman wowed the red carpet when she unveiled her new sexy, honey colored mane.
Portman downplays an otherwise harsh middle part with soft waves and pretty makeup.
The actress opted for a relaxed bun at the New York City premeire of Brothers.
Effortless and beautiful, Portman kept it simple with loose, pinned back curls.
Like a favorite pair of jeans, these sweet, side-swept fringes never disappoint.
Channeling her inner Black Swan, Portman stepped out for the film's premiere with serious curls and red lipstick to match.
The Oscar nominee paired a jeweled headband with a Roman-inspired gown at the 77th Annual Academy Awards.
Discreet highlights take this easy bun from shabby to chic.
A deep side part and messy chignon have become a Porman staple on red carpets all over the world.
An elegant up-do channeled old-world romance for the actress' London premiere of her period piece, The Other Boleyn Girl.
Portman's unique French twist at the Venice Film Festival bared an uncanny resemblance to the signature style of her Star Wars character, Queen Amidala.
A glowing Portman showed off her luxuriously healthy locks (and growing baby bump) at the 2011 Oscar Nominees Luncheon.
Portman hit the red carpet for No Strings Attached premeire with a 70s-inspired halter dress and laid back tresses.
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