AceShowbiz - Emily Ratajkowski has gone blonde. Having long been known for her signature long brunette locks, the 29-year-old model underwent major hair transformation on Tuesday, June 23, and shared her drastic new look with her 26.6 million followers on Instagram.

The model, who took the role of Andie Fitzgerald on "Gone Girl", first showed off her new bleached hairdo in a brief video she posted in the photo-sharing platform. Along with it, she simply wrote, "BLONDE," and thanked hair care company Kerastase for her transformation.

A number of Ratajkowski's famous friends were quick to share their excitement over her transformation. Fellow model Kaia Gerber left a smiley face with heart eyes emoji, while actress Bella Thorne threw in three flame emojis. Hailey Baldwin, in the meantime, added the word "Wowwww" to a smiley face with heart eyes emoji.

Around the same time, Kerastase shared similar video and Ratajkowski's photos on its official account. In its caption, the company wrote, "BOOM!! @emrata went blonde and we are sooooo obsessed with her new look!" They later posted another snap and noted, "Thank you, Emily, for the trust! Co-creating this transformation with you was fun, we are here to care for your blonde ;) ."

A brand ambassador for Kerastase, Ratajkowski will be serving as the face of its Blond Absolu collection. In a press release about her transformation, the "I Feel Pretty" actress admitted, "I've never colored my hair or changed the length significantly in my entire life! I'm absolutely thrilled that Kerastase gave me their blessing to become a blonde."

"I just celebrated my birthday and am so happy to be coming out of quarantine with a fresh new look," the wife of actor Sebastian Bear-McClard continued. "Beauty is meant to be fun and expressive and this is definitely, hands down, the most fun I've ever had with my look before."