By Antoinette Bueno
8:21 AM PST, December 28, 2011
This was undeniably Jennifer Lopez's year. The 42-year-old single-handedly revived her star power just by looking great. Oh, and nobody rocks a jumpsuit quite like Jennifer.
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1. Jennifer Lopez

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This was undeniably Jennifer Lopez's year. The 42-year-old single-handedly revived her star power just by looking great. Oh, and nobody rocks a jumpsuit quite like Jennifer.
2. Blake Lively

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Blake Lively proved she's much more than a beautiful blonde this year. With an impressive three Vogue covers under her belt, Lively also became the face of Chanel's Mademoiselle handbag line in March -- permanently cementing her status in the fashion world.
3. Zoe Saldana

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With her incredibly lean dancer's body, it's no wonder that just about everything looked great on Zoe Saldana this year. Most stunning? This striped Armani gown she wore to the Tree of Life premiere at the Cannes Film Festival that only she could pull off.
4. Evan Rachel Wood

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Evan Rachel Wood created quite a stir when she chopped off her locks in June. But the haircut seemed to revolutionize her fashion sense, as Evan Rachel Wood transformed right before our very eyes into a stunning fashionista. She is now the face of Gucci.
5. Elle Fanning

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At just 13-years-old, Elle Fanning has managed to capture the fashion world by storm. As if becoming the face of the Fall 2011 Marc Jacobs campaign wasn't enough, she also modeled the Rodarte spring/summer 2012 collection in the latest A Magazine.
6. Emma Stone

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Emma Stone is not only Hollywood's latest "It" girl, she's also a budding style star too. The funny girl showed she's not afraid to take chances on the red carpet, stunning in quirky high-fashion gowns seemingly made for her.
7. Hailee Steinfeld

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To say Hailee Steinfeld burst onto the style scene this year is an understatement. Hailee shocked fashion critics around the world with her incredible red carpet looks during awards season, when she was recognized for her role in True Grit. This year she also booked a high-profile Miu Miu campaign -- how's that for a 15-year-old?
8. Kate Bosworth

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Kate Bosworth perhaps got more press this year for her impeccable style than her film work. Enough said.
9. Olivia Wilde

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Known for her amazing physique, Olivia Wilde showed she's much more than a hot body -- she's a stylish lady too. Olivia showed incredible restraint in her red carpet choices this year, where she proved you don't have to show too much skin to be sexy -- even when you have a body like hers!
10. Emma Watson

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Emma Watson has always been stylish, but ever since that infamous pixie cut last year, the Harry Potter star has taken her fashion game to a whole new level. Emma deserves a spot alone for continually stunning crazed crowds at the Harry Potter and the Deathly Hollows: Part 2 press tour around the world this year -- who could forget her show-stopping Oscar de la Renta gown at the London premiere?
2011's Most Stylish Stars

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From Zoe Saldana's bold red carpet statements to Blake Lively's high fashion transformation, we're counting down the top 10 most stylish stars of 2011. See which celebs made the cut!