Celeb Hair Makeovers: Better Before or After?

These stars are crossing into new hair-itory (we couldn't resist). Check out Julianne Hough's fresh blonde tresses, Hilary Duff's new gray hue, Christina Aguilera's shoulder-grazing lob and these other major mane changes

BEYONCÉ

The Queen Bey reminds us she's totally fierce (we didn't really need a reminder), cutting those long blonde waves into a chic pixie. So, which look runs your world?