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

KRISTIN CHENOWETH 

"I didn't watch," the actress told PEOPLE about being afraid to look when the scissors came out. Luckily, she's happy with the results. "I think I've needed this for a long time."