Allison Williams with platinum blonde hair on the cover of Allure

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You could argue that Marnie Michaels might be the most predictable character on HBO's Girls, but the actress who portrays Marnie, Allison Williams, isn't afraid of a dramatic change. So when the starlet went into hair and makeup for her March Allure cover shoot (she also appeared on the cover in 2014), she went for it. All the way. Allison Williams with platinum blonde hair, courtesy of colorist Aura Friedman, is a literal vision—one that we needed to find out more about.

(Psst: If you're not in the know with NYC colorists—no judgment, it's definitely a niche space—Aura Friedman is the guru of colorists when it comes to all things blonde. Friedman also happens excellent with pretty colors like pink and purple—and has a celebrity- (and regular-person) cult-following for her coloring skills.)

With Friedman's skills (seriously, her Instagram is all the proof) and a bold AF attitude, the lifelong brunette didn't balk at the idea of going blonde. In order for Williams to settle on a shade, Friedman eased her into the stark change by reviewing a slew of tones to find one that would suit the actress. "We were thinking about vintage movie stars, like Brigitte Bardot," Friedman told Allure.

See photos of Allison Williams through the years:

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NEW YORK, NY - AUGUST 06: Allison Williams attends 'Hamilton' Broadway Opening Night at Richard Rodgers Theatre on August 6, 2015 in New York City. (Photo by Jenny Anderson/Getty Images)
NEW YORK, NY - JULY 02: Allison Williams filming 'Girls' on July 2, 2015 in Williamsburg , New York City. (Photo by Steve Sands/GC Images)
NEW YORK, NY - MAY 04: Actress Allison Williams attends the 'China: Through The Looking Glass' Costume Institute Benefit Gala at the Metropolitan Museum of Art on May 4, 2015 in New York City. (Photo by Andrew H. Walker/Getty Images for Variety)
BEVERLY HILLS, CA - JANUARY 11: Actress Allison Williams attends HBO's post Golden Globe Awards party at The Beverly Hilton Hotel on January 11, 2015 in Beverly Hills, California. (Photo by Jason LaVeris/FilmMagic)
WEST HOLLYWOOD, CA - MAY 28: Actors Jonathan Groff (L) and Allison Williams attend the Variety Studio powered by Samsung Galaxy on May 28, 2014 in West Hollywood, California. (Photo by Joe Scarnici/Getty Images for Variety)
WEST HOLLYWOOD, CA - MAY 28: (L-R) Actresses Carrie Brownstein, Kathleen Rose Perkins and Allison Williams attend the Variety Studio powered by Samsung Galaxy on May 28, 2014 in West Hollywood, California. (Photo by Jonathan Leibson/Getty Images for Variety)
WEST HOLLYWOOD, CA - MAY 28: Actors Allison Williams (L) and Max Greenfield attend the Variety Studio powered by Samsung Galaxy on May 28, 2014 in West Hollywood, California. (Photo by Joe Scarnici/Getty Images for Variety)
WEST HOLLYWOOD, CA - MAY 28: Actor Jesse Tyler Ferguson and Allison Williams attend the Variety Studio powered by Samsung Galaxy on May 28, 2014 in West Hollywood, California. (Photo by Joe Scarnici/Getty Images for Variety)
LOS ANGELES, CA - MARCH 14: Allison Williams is seen at LAX airport on March 14, 2014 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)
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After a trip to NYC wig shop Hair Shop—and a few different blonde takes under their belts—the pair opted to go for "a dusty-rose tone and kept the roots darker," Friedman said, to soften the bold new hue (and continue the celeb-favoredrose-gold hair trend). Williams couldn't have been more happy with her new color, either.

Composite. Ben Gabbe/Getty Images, Jason Kibbler

"I like it!," Williams told Allure. "Especially this blonde—it feels like it is just a new twist on the same old me. It's just hair! But it's fun."

So don't be surprised if (when?) you see Williams living life beyond the pages of Allure as a blonde. "Maybe I'll become this gorgeous bombshell vixen," she said. "Or maybe I'll still just be the adult-spelling-bee spirit I've always been. I bet people won't recognize me, and that's gonna be a fun reveal with my friends."

Jason Kibbler

Want to go blonde yourself? Check out the most flattering blonde hues for every skin tone to find a complimentary shade to pursue, either DIY or at the salon. Or, of course, you could always start at a wig shop like Williams and Friedman did.

Check out Allison Williams's Allurecover story here, and be sure to pick up an issue when it hits newsstands on February 21st.

More from Allure:

The 10 Best Mascaras Under $20

The 9 Prettiest Date-Night Makeup Looks

Find the Best Haircut for Your Face Shape

20 Celebrities Who Look Surprisingly Different Without Their Signature Looks


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