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New Year’s Eve is here! If you’re like us, you’e got the champagne chilled and your sparkly dress pressed, but you’re still wondering what, exactly, to do with your hair. We gathered the very best party-worthy styles, and you can try on all ten in our Hollywood Makeover tool! Find your New Year’s look now.

• Try on Gwen’s sex-kitten bump

• Try on Beyonce’s silky straight hair

• Try on America’s romantic ponytail

• Try on Debra’s asymmetrical bun

 

New Year, new haircut? This time of year always triggers an itch for switching up your style. More

We’ve been spotting red lips on celebs like Rachel Weisz and Gabrielle Union since early fall—and to be perfectly honest, we’re not one bit sick of it. In fact, red lips are the perfect last-minute (and affordable!) accessory for your New Year’s Eve celebrations. In case you’re still a little timid about how, exactly, you’re going to get in on this trend, don’t fret. Find the perfect shade to flatter your skin tone and hair color with our fool-proof guide to picking a red lipstick.

—Kimberley McLeod

Move over, Gossip Girls—there’s a new crop of style stars in town. Keep an eye out on the red carpet for Selena Gomez—you won’t see any middle school style on this Marchesa fan. We’re also loving Malin Akerman and Freida Pinto, whose daring and colorful red carpet choices never disappoint. See all of our picks now!

See more Best of 2009.

— Joyann King

Whether you’re working towards star-worthy abs, toned legs or a post-baby slim down there’s a simple and free way to stay on track. The same coaches that work with stars like Heidi Klum, Jessica Alba and Jennifer Aniston are on twitter, sharing some of the same workout tips that keep their celebrity clients looking great. Add these trainers to your twitter feed to keep up with all the latest star fitness secrets! More

From barely-there figure-flaunters to sophisticated sheaths, the last 10 years have been great for gowns. Take a walk down memory lane (via the red carpet!) with InStyle fashion director Hal Rubenstein’s picks for the decade’s top 12 dresses. Then vote for your favorite!

See the 100 best dresses of the decade.

— Joyann King

One doesn’t reach full stylesetter status until a bag is named after them—now former MTV host Alexa Chung can be added to the style pantheon with her very own Mulberry bag! An updated version of the brand’s iconic Bayswater bag, the covetable Alexa comes in a variety of colors, trims and sizes, from an oversized version in deep violet ($1,250) to a clutch in bright pink leopard print ($695). While the bag has been seen on Chung’s arms for months, you (and we) must wait until early 2010 to get your hands on it.

—Enid Portuguez

Lindsay Lohan’s 6126 leggings line is ready to branch out with a full collection. Starting this fall, the line will include 100 pieces ranging from its signature leggings ($18) to a leather jacket ($300). “The vision is to offer customers…items that go back with leggings: blazers, dresses and tops,” 6126 principal Kristi Kaylor told WWD. Lohan, who continues to serve as artistic advisor to the Ungaro brand, has been hands-on with the expansion. “She’s intimately involved from Day One,” said Kaylor. “She doesn’t let anything go into production without trying it on.”

Shop 6126 leggings

—Enid Portuguez