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Cheryl Cole, Sarah Jessica Parker

Kevin Winter/Getty Images; Demis Maryannakis, PacificCoastNews.com

Hollywood's latest trend is nothing if not hair-raising!

Fashionista Sarah Jessica Parker rocked a huge, '60s bouffant yesterday when she stepped out for the Robin Hood Foundation gala in New York City.

And just a day earlier, new X Factor judge Cheryl Cole also sported a teased, Texas-sized mane on her way to the reality show's audtions in La-La Land.

Are you ready for big hair to make a comeback, or are the ladies' sky-high locks a big no-no?

PHOTOS: Stars' Bad Hair Days