New Celebrity Hairstyles 2012

In late October, the new mom stepped out in a darker take on the ombre trend, opting for a dark chocolate base with light blond tips.

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The Gossip Girl star bid adieu to her trademark Blair Waldorf layers in October for a wavy, collarbone-grazing long bob.

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Justice debuted her polished shoulder-length cut at the Hollywood premiere of her new film Fun Size in October.

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Kristen Wiig lightened her strands to a reddish-brown tone in October 2012. "It's only a couple weeks old, so I'm getting used to it, but I like it," she told InStyle.com at the Elle Women in Hollywood celebration in Los Angeles. "It's for a film. I love it."

Decker darkened her hair in October 2012. "It hasn't been brown in a long time," the model and actress said. "I was really bored and just decided to go brown." For the dye job, she called upon hairstylist pal Michael Angelo and made a stop at his Wonderland Beauty Parlor. "I've been going to him for years and he's so much fun and has a great place. It took maybe two or three hours. There were several steps."

Magic Mike star Cody Horn chopped off her long strands in October 2012, thanks to celebrity hairstylist Jamal Hammadi. "I kept going up and up and up since April. I've been wanting to do it for years! Once I had the opportunity, I said, 'This is happening now.' It was time to do something different."

Olivia Wilde said goodbye to her summer ombré style and embraced the cooler weather with chocolate locks!

The supermodel-turned-fashion designer sports pink streaks at her Truly Scrumptious Collection launch.

As if she weren't busy enough prepping for her show at New York Fashion Week, Zoe found the time to add wispy fringe to her blond strands in September.

Recalling her role at Katniss Everdeen in The Hunger Games, Jennifer Lawrence debuted a new dark 'do at the Toronto Film Festival this year.