Celebrity Good Hair, Bad Hair

Celebrity Good Hair, Bad Hair

They've got the world's top hair stylists on speed dial, but even Hollywood's most stylish stars suffer from the dreaded bad hair day now and then. We found them at their best -- and hair-raising worst! Here, Katherine Heigl

shows us how to do waves the right way with her old Hollywood glam look. But with too much product her locks look dingy -- not to mention straight out of "There's Something About Mary!"

Please tell us this mullet-inspired chop job is for a movie role! Hopefully Jada's hair will grow out soon to our preferred look -- shiny and sleek

Only Bo Derek could be a perfect "10" in cornrows. We're glad this new mommy has traded her Dirrty 'do for Marilyn Monroe-inspired platinum blonde waves.

No wonder Posh started a blunt bob trend in Hollywood -- it suits her perfectly. In her stodgy up-do, however, she looks like she's taking her reputation as an ice queen a little too seriously

How did L.A.'s biggest party girl end up with a soccer mom haircut? Luckily, Paris soon grew her 'do into a perfectly flirty asymmetrical bob