Coco Rocha's hair has taken on a life of its own. The Canadian model switched her locks from brunette to red to black all within a matter of months. Holy processing, Batman! And her changes have kept fashion fans riveted — we know, you like her better as a redhead. But she's not the only model who transformed her look this season. Vlada Roslyakova dyed her golden tresses a shade of strawberry, Olga Sherer darkened her brown hue into a deep mahogany, while Raquel Zimmermann, Daul Kim, and Iekeliene Stange all decided that blondes have more fun. Click ahead to see all the mane changes.