What's Her Best Hair?

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SARAH JESSICA PARKER

Schroewig/Splash News Online; Julien M. Hekimian/Getty

The Sex and the City star went for a sleek, upswept do at the film’s Berlin premiere, then let her wavy locks flow a few days later at the Parisian launch of her fragrances.

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SARA EVANS

Stephen Lovekin/Getty; Jon Kopaloff/FilmMagic

The country singer – and former Dancing with the Stars contestant – traded in the long dark locks she showed off at the CMT Awards in Nashville for a shorter, sassier highlighted style a few weeks later at the Country Music Awards in Las Vegas.

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LAUREN CONRAD

Matt Sayles/AP; Chris Polk/WireImage

The Hills star turns up at a L.A. party with pin-straight locks, only to switch to ringlets for the show’s finale a few weeks later.

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UMA THURMAN

Peter Kramer/AP; Edward Opinaldo/Pacific Coast News

The iconic blonde actress goes incognito in auburn hair for her latest film, Motherhood.

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KIM RAVER

Jamie McCarthy/WireImage; Splash News

The Lipstick Jungle star joins the bang brigade with her sharp fringe and sleek bob.

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JENNIFER LOPEZ

Charles Sykes/Rex; Gregorio Binuya/ABACA

The new mom switches it up from a slicked-back bun at a movie premiere to loose curls at the Metropolitan Museum of Art Costume Institute gala .

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VICTORIA BECKHAM

George Pimentel/WireImage; Ron Asadorian/Splash News

The pop singer ditches her now-signature bob for a piled-high updo at the Met gala.

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HALLE BERRY

INF; Jason Merritt/FilmMagic

The new mom ditched her curly pregnancy do for a sleek post-baby blowout.

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JADA PINKETT SMITH

Steve Granitz/WireImage; Johnny Nunez/startraks

The normally sleek actress went for an edgy mullet at a L.A. beauty event last week.

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LIV TYLER

H. Walker/Getty; Michael Loccisano/FilmMagic

The actress takes inches off her glossy brown hair for a shoulder-grazing bob.

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SELMA BLAIR

Matt Baron/BEImages; Richie Buxo/Splash News

The Hellboy II actress ditched her short flapper do for long extensions recently.

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RACHEL BILSON

Junko Kimura/Getty; Bill Davila/Startraks

The brunette star dons a blonde wig for her role in New York, I Love You.

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EVAN RACHEL WOOD

Jason Merritt/FilmMagic; Dimitrios Kambouris/WireImage

The Life Before Her Eyes actress swaps her golden blonde hair for dark brunette locks and strikingly goth makeup. She tells PEOPLE that she can thank boyfriend Marilyn Manson for her makeover. “I was always pale,” says Wood. “And I’m glad that I can be open about my paleness now.”

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GWYNETH PALTROW

Nick Price/Startraks; Stephen Lovekin/Getty

After debuting her new shoulder-length do, the actress turned up the drama with a headful of spiral curls.

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KRISTIN CHENOWETH

Neilson Barnard/Getty; Darla Khazei/PacificCoastNews

The Pushing Daisies star adds heavy bangs to her full blonde hair at the 25th Annual Women in Need gala dinner.

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CARRIE UNDERWOOD

Marc Andrew Deley/FilmMagic; Reuters /Landov

The country singer added wispy, eye-grazing bangs to her platinum hair.

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LILY ALLEN

Ramey; BIG PICTURES/Bauer-Griffin

Something to “Smile” about? The British singer ditched her natural brunette locks for a light blonde shade.

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ALANIS MORISSETTE

Chad Buchanan/Getty; Getty

The formerly brunette singer showed off a new strawberry blonde do – and a mystery man! – while out and about this week.

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LINDSAY LOHAN

Fame; DS-ISM/Flynet

The star continued with her ever-changing hair color – ditching her dark red for bright blonde.

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CYNTHIA NIXON

Rob Loud/Getty; Stephen Lovekin/Getty

Best known for her role as redhead Miranda on Sex and the City, the actress returned to her natural blonde after the film wrapped.

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MARY-KATE OLSEN

Charley Gallay/Getty; Dimitrios Kambouris/WireImage

The star ditches her signature tangled waves for a sleek and straight do at a party in N.Y.C.

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SARAH MICHELLE GELLAR

Dara Kushner/INF; Jon Kopaloff/FilmMagic

The actress ditched her usual smooth blowout for wavy locks at a Buffy: The Vampire Slayer event in Los Angeles this week.

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ELISHA CUTHBERT

Kevin Winter/Getty; Adrian Varnedoe/Pacific Coast News

Why wait for hair to grow in? The Captivity star added lots of length to her platinum locks this week.

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MILEY CYRUS

Fitzroy Barrett/Landov ; NMME/Finalpixx

The young star ditched her black color for a light auburn – and added bangs!

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GWYNETH PALTROW

Richard Young/Startraks; PA Photos /Landov

Known for her waist-length platinum locks, the Oscar winner debuted a shoulder-length cut in London this week.

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JESSICA BIEL

Goff/INF; Hector Vasquez/Ramey

The Easy Virtue star returns to her light brown hair, after dying it platinum for the role.

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ASHLEY TISDALE

Evan Agostini/AP; Chris Polk/WireImage

The High School Musical star brightened up her dark blonde locks to a light blonde.

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JENNY MCCARTHY

Jeffrey Mayer/WireImage; George Pimentel/WireImage

The actress adds blunt bangs to her bob this week.

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JENNIFER ANISTON

LJP/Flynet; INF

The Marley and Me star gets into character with heavy bangs on the film’s Miami set.

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JOY BRYANT

Dimitrios Kambouris/WireImage; Frazer Harrison/Getty

Another member of the bang brigade! The Welcome Home, Roscoe Jenkins actress adds fringe to her long locks.

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What's Her Best Hair?

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SARAH JESSICA PARKER

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SARA EVANS

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LAUREN CONRAD

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UMA THURMAN

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KIM RAVER

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JENNIFER LOPEZ

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VICTORIA BECKHAM

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HALLE BERRY

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JADA PINKETT SMITH

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LIV TYLER

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SELMA BLAIR

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RACHEL BILSON

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EVAN RACHEL WOOD

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GWYNETH PALTROW

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KRISTIN CHENOWETH

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CARRIE UNDERWOOD

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LILY ALLEN

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ALANIS MORISSETTE

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LINDSAY LOHAN

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CYNTHIA NIXON

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MARY-KATE OLSEN

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SARAH MICHELLE GELLAR

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ELISHA CUTHBERT

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MILEY CYRUS

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GWYNETH PALTROW

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JESSICA BIEL