10. Gwyneth Paltrow
Gwynnie loves Gooping about clothes on her website, so damn straight she should practice the good style that she preaches. Though in years past, some of the Oscar-winning actress's fashion statements have been questionable, in 2010 she really pulled it together, dazzling in different pieces from sparkly metallic trenches to sleek and simple orange dresses.
9. Zoe Saldana
Zoe's specialty? Couture that might look ridiculous on anyone else she can rock like no other. Sometimes they're flirty, sometimes they're edgy, but the Avatar star's red carpet choices are always unique and stunning. Oh, and the exotic beauty helps, too.
8. Emma Watson
It's not easy growing up in Hollywood, but this Muggle has managed to do it gracefully and tastefully. In 2010, Emma broke out as a full-fledged fashionista, rocking edgy, age-appropriate and chic looks on every red carpet. She's also the face of Burberry and has codesigned two clothing lines.
7. Halle Berry
This A-list babe could wear a paper bag and look fabulous—but of course that would never happen. Instead, Halle chooses sophisticated, body-conscious designs that show off her famously fab figure and gorgeous face.
6. Sarah Jessica Parker
It ain't easy staying on top, but fashion powerhouse SJP manages to do just that year after year, looking fresh and pretty. Many of her red carpet looks in 2010 surprised—in a good way.
5. Carey Mulligan
The gamine beauty burst onto the red carpet scene after her breakout role in An Education and hasn't looked back. Since then, Carey's fearless sensibilities and effortlessly chic style have made her fashion's new It girl—she's graced the covers of Vogue and Elle UK.
4. Rihanna
Admittedly, our feelings are mixed about the diva's funky style this past year and her ever-evolving hair color, but we totes admire her "go fierce or go home" mantra when it comes to fashion—plus, she always looks like she's having fun with it and doesn't take it too seriously.
3. Diane Kruger
The Inglourious Basterds star has a quirky sense of style and, most important, the poise and attitude to pull it off. We always look forward to her red carpet outtings because you never know what intriguing couture she'll wear next. Plus, she's got the best accessory of all: Pacey, natch.
2. Lady Gaga
Yes, her style is insane and more costume than clothes. But every thread—or slab of meat or lobster head or pearl—the "Bad Romance" singer puts on her body is well-thought out and cleverly executed. Clothes are like performance art for her, and that's cool. Most important, she's influenced Hollywood fashion, raising the bar for every celebrity who puts on a dress and stilettoes.
1. Lea Michele
First came the hit show and then came the couture designers knocking on Lea's door, all dying to dress McKinley High's adorable Glee clubber. From Oscar de la Renta to Giambattista Valli to Zac Posen, the starlet has rocked a wide variety of couture designers with aplomb.
Next gallery: Top 10 Reality Shows of 2010