The haircare brand responded, praising Emrata for her bold new look on their own page: "Our muse @emrata went blonde and we can’t get enough of it! Thank you, Emily, for the trust! Co-creating this transformation with you was fun, we are here to care for your blonde ;)."
They weren't the only ones excited about the new look. Tons of celebrities and fans flocked to the comments of Ratajkowski's post to praise the new look.
Hailey Bieber was as impressed as the rest of us, writing, "Wowwww," with four heart-eyed emojis.
Bella Thorne commented a series of flame emojis. And Elsa Hosk spoke for all of us with a simple comment: "Okkkk more pics."
Wondering how to accomplish the blonde bombshell look like Ratajkowski?
Kerastase shared the details of her hair maintenance routine on their Instagram page: "She can get fiber healing and anti-brass actions with Bain Ultra-Violet. Then she treats her hair with Cicaflash to restore sensitized hair and prevent breakage. And last but not least, fortify and protect your hair fiber with Cicaplasme."
The model herself also shared a video of her hair routine as a blonde, detailing exactly what she does to keep her hair looking perfect.
Although her transition might seem spur of the moment, the truth is that it was in the works for a long time. According to Marie Claire, the Global President of Kérastase, Rosa Carrico, explained the decision, "We planned it for so many months and now finally did it!! Love how we embark on these adventures together."