You may scream with surprise when you see Hayden Panettiere's daring new look.
The actress recently debuted on social media a playful, bubble gum pink and slightly shorter hairstyle, courtesy of colorist Christine Chavez and hairstylist Rena Calhoun.
"Pink hair don't care!" Hayden, 34, wrote on Instagram Sept. 2, alongside a photo of herself sporting her new, shoulder-length 'do while sitting in a dressing room. "#photoshoot #pinkhair #glamteam."
The formerly blond Scream star paired her new hairstyle with pink eyeshadow and lipstick.
Her makeup artist, Janice Daoud, commented on her Instagram post , "Pretty in pink." She also shared a photo showing Hayden's new 'do from a side angle.
The actress' colorist wrote on her own Instagram, "So much fun giving @haydenpanettiere her bubble gum pink dream hair."
The Nashville alum had actually showcased her new 'do publicly for the first time last week, when she was photographed at Los Angeles International Airport with Brian Hickerson.
The two had reconnected as friends several months ago after they both became sober following an on-again, off-again turbulent relationship that began in 2018. Earlier this year, Hayden told The New York Times that "there are feelings there, yes," and that their friendship is "contingent on him continuing on this road of recovery."
See Hayden's photo of her new 'do and scroll down for more stars' epic hair transformations over the years:
Kate Beckinsale
The Underworld actress took the plunge and went full blonde, while also debuting a short bob haircut.
Riley Keough
The Daisy Jones & The Six actress debuted jet-black hair on Nov. 2.
Rihanna
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.
Eva Longoria
The Flamin' Hot director recently showcased her dramatic transformation, debuting a choppy, layered bob on Nov. 9.
Alix Earle
The TikToker debuted a fresh haircut, revealing a long bob.
Miley Cyrus
After rocking platinum blonde tresses for years, Miley officially returned to her brunette roots to model Gucci's new collection.
Kate Middleton
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.
Cara Delevingne
The supermodel debuted a punk-rock hairstyle at Vogue's World Show during London Fashion Week on Sept. 14
Brittany Snow
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.
The "Vogue" singer debuted an edgy shag haircut on June 11.
The Dance Moms alum proved you can be blonde and brunette at the same time with her recent hair change.
The High School Musical alum has entered her French girl era, after showing off her new curtain bangs.
The New Girl alum ditched her trademark brown hair and blunt bangs for a sky-high blonde 'do for her upcoming appearance on the '80s-based Apple TV+ series Physical.
The "Over It" artist headed into summer with a shorter cut and new hair color, debuting her blonde bob to Instagram in May 2023.
The X-Men star kissed her shoulder-length hair goodbye and debuted a pixie cut on May 26.