Celeb Hair Makeovers: Better Before or After?

These stars are crossing into new hair-itory (sorry – we couldn't resist!). Check out Jessica Alba's chic new bob, Hilary Duff's blue mermaid hair, Lena Dunham's piecey pixie and these other major mane changes

NICOLE RICHIE

Nicole tested the (purple) waters by posting a digitally enhanced Insta that made her dirty-blonde strands look purple. The nearly 100,000 likes must have convinced her to do it for real.