Even more than her fashion sense, the teen starlet turned style icon is known for her dramatic 'dos. Look back at her many cuts and colors through the years.Plus: Read the cover story, see our all of Katie's exclusive photos, and go behind the scenes of the shoot!
Prim and proper in a Renaissance-inspired updo, Katie paired her delicate tendrils with lace and pearls for a regal look at the 47th Annual Emmy Awards in Pasadena, California.
Dressed in tandem with the event's namesake, Katie showed up at the New York premiere of Boys and Girls looking girlishly innocent with no-nonsense, natural waves.
The actress looked chic with a simple over-the-ear bob and basic bangs at the Saturday Night Live after-party in New York.
Katie looked hot at the Los Angeles premiere of Abandon, proving that honey highlights can heat up the night!
Showcasing her youth with playful pigtails, braided and banded at the bottom, Katie was caught laughing during the Cinetic Media and John Sloss Party at Zoom in Park City, Utah.
We almost didn't recognize you, Katie! Bare-faced and blonde, the actress tried out layered two-toned hair at the special New York screening of Phone Booth hosted by Interview.
The Dawson's Creek star radiated classic simplicity with a half-up hairstyle at the 60th Anniversary of Seventeen magazine party at the Marquee Chelsea West Theatre in New York.
All smiles at the VH1 Save the Music concert in New York, the star rocked a sleek look with stick-straight streaks.
Looking like a rescued Rapunzel alongside her Prince Charming (also known as Tom Cruise), Katie sported lovely, loose curls at the premiere of War of the Worlds at Odeon Leicester Square in London.
While sitting front row at Giorgio Armani Privé in Los Angeles, Katie looked California chic with shiny, side-swept layers in her classic shade of espresso.
Showing up to support her hubby, Katie looked lovely in loose, underdone waves at Mentor LA’s Promise Gala in Los Angeles.
We love Katie's flipped-out, fringed cut for a casual luncheon in Los Angeles.
She keeps going shorter and shorter! Paired with face-framing bangs, Katie's hair looked pixie-perfect at the Los Angeles premiere of Tropic Thunder.
The A-lister, perfectly polished and politically correct, posed at the 20th Annual PBS National Memorial Day Concert rehearsals at the U.S. Capitol in Washington, D.C.
Sporting the "late for class" bed-head look, Katie walked among students in Harvard Square in Cambridge, Massachusetts.
Katie's glazed chocolate curls were red-carpet ready at the National Movie Awards in London.
Donning classic mariner stripes, Katie showed up at the New York premiere of The Extra Man with shoulder-length, tousled twists and texturized bangs.
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