Celeb Hair Makeovers: Better Before or After?

These stars are crossing into new hair-itory (we couldn't resist). Check out Britney Spears' rainbow mane, Gigi Hadid's dip-dyed ends, Katie Holmes' shoulder-grazing bob and these other major mane changes mane changes

DIANNA AGRON

After a brief stint as a redhead, the Glee actress apparently decided that being blonde is where it's at and went back to her roots, lightening up her locks just in time for summer.