Kloss debuted her new hair color, courtesy of celebrity colorist Karla Welch, this weekend in Paris, where she made appearances at the Christian Dior Fall/Winter Haute Couture show and Vogue Foundation Dinner. Of course, it's not the first time this year Kloss has experimented with the icy hue: She also tricked us into thinking she got a short platinum cut for the Meta Gala . But this time around, the model’s hair is much cooler in tone — and it's the real deal.