Celebs

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Carrie Underwood’s gold lame Theia dress wasn’t the only thing turning heads on the American Music Awards’ red carpet tonight. Country’s blonde beauty chopped off her famous long locks for a bouncy bob! The new style makes for a refreshing change without taking away from Carrie’s bombshell status. We love the change-up! Tell us: What do you think of Carrie Underwood’s new shoulder-length do?

PLUS: CATCH ALL THE RED CARPET STARS AT THE AMAs IN OUR PHOTO SPECIAL!

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Supermodel and actress Amber Valletta is definitely no stranger to having all eyes on her, and Thursday night, she was the center of attention as she made her designer debut with the launch of her collection Amber Valletta for Monrow at the Ron Herman Melrose store. Although the supermodel-turned-actress (and now fashion designer!) may not be strutting her stuff on the catwalk anymore, she was runway-ready as she dazzled the crowd in a stunning black long-sleeve mini dress from her collection. The sleek star worked with stylist Lia Davis to design a collection that she describes as “classic with an edge but accessible,” she tells PEOPLE. Pieces like the ivory fringe cape, and gold ’50s high-waisted boy shorts give the collection an edgy vintage touch. The collection is already being worn by stars like Rachel Bilson, who turned up to support on Thursday night, and Jessica Stroup. Guests couldn’t stop raving about the collection as they enjoyed some bubbly from Perrier-Jouet and Crumbs cupcakes — if only it was available online already!–Tiffany Matloob

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Heidi Klum didn’t plan on walking the runway of the Victoria’s Secret Fashion Show last night, but let’s just say she’s a little bit impulsive. “I felt great the night of the fashion show and decided last minute to walk,” the supermodel, 36, who welcomed daughter Lou, with husband Seal, last month, tells PEOPLE exclusively. Klum, who had already been fitted for her dress, opened the Enchanted Forest-themed part of the show, wearing a vine-strewn corset and a full white skirt. “I loved my outfit,” she says, “so I thought, why not?” Her surprise appearance, known only to Victoria’s Secret insiders, drew screams and applause from a shocked audience during the live show Thursday night. Though Klum, who was expected only to host the festivities, said that while her new job behind the scenes meant there was “definitely less pressure,” walking in the show was a thrill for her. “I’m proud of being the curvy model on the Victoria’s Secret stage,” she says, adding that she enjoyed the show herself. “The Black Eyed Peas and all of the looks for the show were fantastic!” You can watch Heidi — and all the Angels — hit the runway when the Victoria’s Secret Fashion Show airs on CBS at 10pm EST on Dec. 1.–Charlotte Triggs

Ever wondered if it’s as glamourous as you imagine on the set of a beauty photo shoot? Who better than Demi Moore to take you behind the scenes? Helena Rubinstein’s newest face reveals a behind-the-scenes look at how her campaign for All You’ve Ever Wanted came together.

CHECK OUT MORE CELEBRITY FRAGRANCES!

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We’re all for a little style experimentation, but when we spotted beauty mavens Ashley and Mary-Kate Olsen at MoMA’s Film Benefit honoring Tim Burton this week in New York we were more than a little perplexed. We’d gotten used to Mary-Kate being the style risk-taker and her twin Ashley taking a more conservative approach. But the duo played with our expectations, with Ashley adding rainbow stripes to her hair and her sister going as bold as ever with the deepest red lips around. Tell us: What do you think of the sisters changing it up? What’s the boldest look you’ve tried in the name of beauty?

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She’s a successful TV star, fashion designer and fiction writer, but she hasn’t written a book on style — until now. Lauren Conrad will unveil her top style tips in Lauren Conrad Style, to be published by Harper Collins in the fall of 2010. The book will not only feature new and never-before-seen photos of the fashion icon, but the former MTV “Hills” star will show readers exactly how to interpret her classic and cool style into their lives. “I am really excited to write a style guide,” said Conrad, who designs an affordable clothing line for Kohl’s, in a release. “I think fashion should be fun and reflective of who you are. When you wear clothes you feel good in, it shows in everything you do. I know this guide will offer simple, practical tips to help anyone look fabulous.” This year, Lauren released her first book L.A. Candy, which was a #1 New York Times bestseller; her follow-up novel, Sweet Little Lies, goes on sale Feb. 2, 2010 (for more information on Sweet Little Lies and Lauren’s 10-city book tour, go to harperteen.com). Tell us: Are you excited for Lauren’s new style book?

Courtesy Glamour

If Leighton Meester could give just one piece of fashion advice to her Gossip Girl alter ego, Blair Waldorf, what would it be? “She could let loose a bit,” British Glamour’s December cover girl says. “She’s always got every bow in the right spot and her headband perfectly placed. Tights to match her sweater to match her jacket to match her gloves to put on with her hat.” It sounds…exhausting. However, despite their different wardrobes, the Gossip Girl actress credits the show for her own edgy style. “This character has been an introduction to fashion,” she says. “I take my own cue and do something different. Blair’s much more classic – I like changing it up.” When it comes to her beauty regime, the actress ditches Blair’s rollers and irons for a more natural look. “I actually think I’m prettier without makeup,” she boldly states, and her favorite hairstyle is definitely headband-less. “I like it to be somewhat tousled.” Perhaps the only fashion item they do have in common is their love of gravity-defying high heels which, according to Meester, are responsible for her toned calf muscles. “It’s probably from walking in high heels — I’m not kidding!” –Monique Jessen