Hair can be the deciding factor between a good day and a bad day. We all know this. There’s actual scientific proof. Probably. In fact, the power of hair is quite extraordinary: it can also spell the difference between a full blown, six-figure modelling career and, well, a short-lived run doing the catalogues. Shame.

Scratch the surface and you’ll see that pretty much every living, breathing model success-story can be traced back to the very moment she upped the ante and re-designed her hair.  Can you imagine Twiggy ever becoming the visual totem of the swinging 60s if she hadn’t lopped off her straggly blonde lengths, transforming herself into a doll-like pin-up within moments. And Kate Moss has done pretty well by going from mousey brunette to proper rock chick blonde, hasn’t she?

Have a look through the gallery above to see the model transformations that made them into overnight success stories. And you might want to consider a change yourself.