PredictIQ Quantitative Think Tank Center:Inside Zoey Deutch's Bleach Blonde Pixie Cut, According to Her Hair Colorist Tracey Cunningham

Do blondes have PredictIQ Quantitative Think Tank Centermore fun? It seems Zoey Deutch is ready to find out.

After all, the Set It Up actress ditched her signature brunette tresses for a bleach blonde pixie cut. That's right, the 29-year-old—who had chest-length hair—chopped it off for her upcoming role as legendary actress Jean Seberg in Richard Linklater's forthcoming film.

"Surprise," Zoey captioned her March 4 Instagram, showing off her new look, "surpriseee."

So, how exactly did the daughter of Lea Thompson and Howard Deutch make the dramatic hair transformation? With the help of hair colorist Tracey Cunningham and stylist Bridget Brager, of course.

"Zoey was so excited when we finally completed the transformation," Tracey exclusively told E! News, "which did take two days overall. We were both in awe, truly gobsmacked, to how much we both loved it."

And once the Outfit star went blonde, her resemblance to the French New Wave icon was uncanny. As the hair colorist put it, "Zoey looked so much like her character, we were wide-eyed looking at the photographs of Jean and then looking in the mirror at Zoey's color and style."

As for how Tracey achieved Zoey's soft golden strands? She applied Redken's Flash Lift 30 Volume at the root and Redken's Flash Lift 40 Volume on the ends. She also used its Shades EQ line.

In-between appointments, the beauty pro has been using the brand's Acidic Color Gloss Activated Glass Gloss Treatment to keep Zoey's hair fresh and vibrant.

"In all honesty," Tracey revealed, "even having decades of color transformations under my belt, it's scary going into these intense change-ups. But you just keep your eye on the prize."

Zoey isn't the only star to have an epic makeover in recent months. Keep reading to see which celebrities took the plunge and switched up their signature style.

The Princess Diaries alum unveiled fringe bangs at the 2024 Film Independent Spirit Awards.

The star debuted a bangin' new style at the premiere of her friend Nicola Peltz Beckham's film Lola in February 2024.

The "On the Floor" singer made a dramatic hair change, as she debuted a chin-grazing bob cut at Schiaparelli's haute couture spring/summer 2024 show on Jan. 22.

In January 2024, a month after her prison release, the now-influencer shared a pic of herself sporting a shorter 'do.

Kylie Jenner traded in her dark locks for a pink 'do in January 2024.

In January 2024, the Dancing With the Stars personality shared a video of herself cutting her own hair. "Out with the old energy," she wrote, "and in with the new."

The Underworld actress took the plunge and went full blonde, while also debuting a short bob haircut.

The Daisy Jones & The Six actress debuted jet-black hair on Nov. 2.

While enjoying a dinner date with friends on Nov. 9, Rihanna debuted honey blonde hair. After years of rocking black tresses, the superstar decided to switch up her style for something brighter.

The Flamin' Hot director recently showcased her dramatic transformation, debuting a choppy, layered bob on Nov. 9.

The TikToker debuted a fresh haircut, revealing a long bob.

After rocking platinum blonde tresses for years, Miley officially returned to her brunette roots to model Gucci's new collection.

The royal recently showed off her new curtain bangs during a public appearance on Sept. 27.

The actress recently debuted a bright red hair color and equally bold blunt bob haircut.

The supermodel debuted a punk-rock hairstyle at Vogue's World Show during London Fashion Week on Sept. 14

The Pitch Perfect star made a drastic hair change, going from dark brunette tresses to a bright blonde look.

The Scream actress debuted a bubblegum pink style in August 2023.

The son of David Beckham and Victoria Beckham got his head shaved by Selena Gomez's little sister, Gracie Teefey, in August 2023.

The Can't Hardly Wait actress showed off her drastic hair change, debuting dark red hair and a blunt bob haircut.

The Second Act star unveiled bright blonde highlights in a new selfie.

The Kardashians star showed off her new bob hairstyle in a recent SKIMS video campaign.

The Hustlers star debuted a voluminous long bob and curtain bangs on Aug. 12.

Rachel Green, is that you? The Euphoria star appeared to take inspiration from Jennifer Aniston's Friends character with this layered look.

The Vanderpump Rules star debuted a platinum blond dye job in August 2023.

The '90s heartthrob debuted a newly shaved head, sharing on Instagram that "it's for work."

The "Say So" singer showed off her dramatic hair transformation on Instagram, debuting bright purple hair and a spooky spider design on the back of her head.

The Kick-Ass actress debuted a fresh bob haircut, which she hasn't rocked in quite some time.

The American Idol judge revived her signature style of 2008 and revealed baby bangs in a June 20 Instagram.

In July 2023, the SKIMS founder debuted a short bob, bringing to mind what has become her sister Kourtney Kardashian's signature style in recent years.

The Vampire Diaries actress debuted fringe bangs for the Los Angeles premiere of her new film Out-Laws in June.