Before she rose to fully-fledged fame, Zooey Deschanel had a seriously different look: blonde locks sans the full fringe she's now famous for.
Natural redhead Emma Stone has pretty much dabbled in the entire colour spectrum, going from peroxide blonde to dark brunette and every shade in between. Her dramatic hair changes necessitate completely different make-up looks and have a major impact on how fair her skin tone appears.
Classic beauty Lily Collins traded pretty for punk when she dyed her brunette hair a grungey shade of red. The deep side part lent the look edge, where as her return to a full fringe and glossy chocolate locks speaks to a more conventional kind of beauty.
Twilight actress Kristen Stewart's trademark look for the entire teen vampire franchise was long, wavy brown locks, so it came as a surprise when she chopped the lot off and went white blonde.
Proving how utterly transformative a dramatic dye job can be, YSL muse Zoe Kravitz has swapped her natural colour for peroxide blonde.
Becks' shaggy, textured lob, with haphazard curls and blunt cut layers, has relaxed her entire look. It's a far cry from the sleek, shiny long hair she used to always have styled just so.
Queen of hair transformations Lucy Hale is most commonly recognised for her short, dark-haired crop. But a few weeks ago, the Pretty Little Liars starlet stepped out rocking this honey blonde balayage - only to return to her original short dark bob this week.