We associate certain hairstyles and hair colours with particular celebrities. There's Ariana Grande's ponytail, Zooey Deschanel's eye-grazing bangs, Gwen Stefani's platinum hue — you get the picture. Well, it turns out, these ladies didn't always have their signature 'dos (shocker, we know...). That's right, Gwen didn't come out of her mum's womb rocking a white-blond, asymmetrical bob — blasphemous, we know.