What's Her Best Hair?

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.

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.

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.

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

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

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 .

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

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

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

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

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

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

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.”

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

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

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

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

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

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

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

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

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

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

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

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

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

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

The actress adds blunt bangs to her bob this week.

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

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