Just a few days ago I was standing outside the casting for the Marc Jacobs show and my friend Dree Hemingway (cover Russian Vogue, Gucci campaign, LOVE editorial) walked by with her bleach blonde hair. Yesterday and just one post below, you can see the worlds #1 model Raquel Zimmerman in bleach blonde hair. And in this post today you can see Women Model Management icon Vlada with her bleach blonde hair.
Recently, Patrick Demarchelier shot a spread of like 15 girls for Fashion Night Out in which Raquel had bleach blonde hair so I'm not saying this is the first time any of these girls have worn their hair color as such. It is however interesting to note how pervasive bleach blonde hair is at the current moment among top models.