We may be in the thick of winter, but many stars are sporting one of our favorite summer hairdos: beachy waves.

Jessica Biel kept it casual at "The Truth About Emanuel" Los Angeles premiere with her ombré hair in tousled waves, and Gabrielle Union went glamorous with voluminous waves cascading down her back. Meanwhile, Reese Witherspoon gave her new bob haircut a twist with loose and layered waves.

Check out these beachy hairstyles (and more head-turning looks) and tell us what you think.

BEST: Jessica Biel

jessica biel

Could Mrs. Timberlake look any cooler? The actress' beachy hair, matte face makeup, subtle glitter eyeshadow and pink lipstick add a feminine flair to her leather jacket.

BEST: Gabrielle Union

gabrielle union

The "Being Mary Jane" star is positively glowing with her clean skin, curled lashes, glossy lips and big, beachy hair. It's simple yet sophisticated, and you can easily recreate this hair and makeup at home.

BEST: Reese Witherspoon

reese witherspoon

We love the blonde beauty's shorter hair even more with her spin on winter beachy waves. Her bronze eye makeup and coral orange lipstick add warmth to her milky complexion.

BEST: Blake Lively

blake lively

Blake Lively's honey-blonde locks are absolutely stunning styled into these lush, deep waves. The gold highlighter placed at the inner corners of her eyes is a beauty trick to make eyes of any color pop. And her bordeaux wine lip color completes the old Hollywood-inspired look.

BEST: Demi Lovato

demi lovato

Wow! We haven't seen makeup this immaculate in a mighty long time. But Lovato's flawless foundation, frosty pink blush and lipstick do well to balance out her blue-streaked updo.

WORST: Christina Applegate

christina applegate

The "Anchorman 2" actress missed the mark with this red carpet beauty look. Applegate's updo hairstyle seems unintentionally messy, that winged-out liner draws attention to her crow's feet and the pale pink lip color blends in with the rest of her nude ensemble.

WORST: Megan Good

megan good

The shape of Good's eyebrows may be on the thinner side, but it is flawless. However, the ghostly grey shadow she used to fill in those brows clashes with her caramel complexion.

WORST: Evangeline Lilly

evangeline lilly

The pompadour hairstyle is a classic 'do that not many people can pull off today, and we think it doesn't work particularly well here for Lilly. The shimmering eye makeup and lip gloss are also unflattering.

WORST: Halley Feiffer

halley feiffer

When wearing bright pink lipstick AND blush, women with fair skin tones like Feiffer's run the risk of appearing red in the face. Less cheek color would have easily turned this look around.

WORST: Edie Campbell

edie campbell

Why is it that in 2013 celebrities are still mimicking "Black Swan" eye makeup? We find it really hard to take Campbell seriously. At least her pixie looks great...

See more best and worst beauty looks:

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  • BEST: Gwyneth Paltrow

    We've never seen the Goop founder sporting a bold shade of red lipstick like this before, but we absolutely love it. The creamy lip color, combined with her shiny blonde strands, add the perfect finishing touches to her little white dress.

  • BEST: Kate Bosworth

    If you've ever wondered why Bosworth was named the face of SK-II skincare products, here's your answer. Who wouldn't want to pay hundreds of dollars to achieve a luminous complexion like this? And we also can't stop staring at her thick waves and red lipstick.

  • BEST: Nicole Richie

    If anyone knows what brand of red-orange lipstick this stylish mama is wearing, please leave a note in the comments section. Richie's bronzed cheeks, golden eyeshadow and a slick updo really bring out her caramel highlights, which we love.

  • BEST: Kerry Washington

    This is how you match your makeup to your outfit. The "Scandal" star's raspberry lipstick has us giddy about what she'll be wearing on Sunday night at the Emmys.

  • BEST: Hilary Rhoda

    Rhoda may be a spokesmodel for cosmetics giant Estée Lauder, but she doesn't need a whole lot of makeup to look glamorous. Neutral shadows, thick brows and side-swept locks are just enough.

  • BEST: Naomie Harris

    The "Skyfall" actress is another example of natural beauty. Harris' dark brown hair color is a great shade for fall, and her nude lip color is stunning against her skin tone.

  • BEST: Hilary Swank

    Kate Bosworth wasn't the only blonde bombshell at the Bulgari Retrospective Opening in San Francisco. Swank shined with her honey blonde waves, flushed cheeks and rose lipstick.

  • WORST: Crystal Renn

    The supermodel's graphic winged liner is breathtaking, but her braided bob has us scratching our heads. It's as if she was trying really hard to look youthful yet grown-up at the same time.

  • WORST: Anna Kendrick

    We couldn't miss Anna Kendrick while she was sitting front row at London Fashion Week. Her limp locks and washed-out face made for one depressing beauty look.

  • WORST: Toni Collette

    The "Hostages" actress' super heavy bangs are practically hiding her gilded eyelids. While Collette's hair color is spot-on, her fringe could desperately use a trim.

  • WORST: Jessica Stroup

    We don't believe that you have to wear makeup to look beautiful. However, this "90210" starlet must have made a last-minute decision to apply a ghostly brown eyeshadow that does her no favors.

  • WORST: Patricia Heaton

    Everybody loves Patricia Heaton, but we don't love this caked-on eye makeup. It draws unwanted attention to her crow's feet, and the flipped-up hairstyle makes her look much older.

  • WORST: Tallulah Harlech

    Let's just ban this unflattering shade of eyeshadow. Harlech's pretty face looks lifeless, and her heavy haircut drags her facial features down.

  • WORST: Elizabeth Velasquez

    There's a lot that's wrong with this video vixen's look, including the drawn-on eyebrows, bubblegum pink lipstick and orange bronzer that weirdly matches her hair.

  • BEST: Paula Patton

    The "Baggage Claim" star looks oh so pretty with her side-swept curls, rosy cheeks and red lips. What kept this bright makeup look from steering wrong was Patton's clean and simple eye makeup.

  • BEST: Salma Hayek

    Now this is a lesson on how to do minimal makeup. Hayek's thick brows, long lashes finely coated in mascara and just a touch of lip gloss make a powerful statement without trying too hard.

  • BEST: Naomi Campbell

    The supermodel's strands are sleek and sexy! We love how Campbell's graduated bangs frame her face, drawing our attention to her soft, smokey eyes and flushed cheeks.

  • BEST: Bailee Madison

    This 13-year-old starlet proves that she's one to watch with her age-appropriate beauty. How cute are her glossy brown ringlets, winged-out eyeliner and shimmering lipstick?

  • BEST: Una Healy

    Redheads, take notes! Healy, a singer from the English-Irish girl group called The Saturdays, brings out her flaming red hair color with bronze eyeshadow, a sliver of black liner and coral lip gloss. (Her turquoise chandelier earrings are an added treat.)

  • WORST: Anna Faris

    Faris' blonde hairstyle reminds us of one of Britney Spears' old wigs, and her pale red lipstick looks very dated. (The bright yellow gown only washes her complexion out more.) A less bulkier 'do and fresher makeup would have made a huge difference.

  • WORST: Kelly Osbourne

    Dear Kelly, we think it's time you say goodbye to this lavender hair dye. The hair color and cut makes the "Fashion Police" co-host look ten times older.

  • WORST: Katy Perry

    We are fans of the milkmaid braid. However, Perry's too-tight plait and red lipstick are giving us scary doll head vibes.

  • WORST: Anna Paquin

    Has Paquin been drinking True Blood? This vampy look is best left on the set of her HBO show or at a Halloween party.

  • WORST: Suzanne Somers

    Where do we begin? The 66-year-old actress, author and businesswoman's complexion appears unnaturally bronze, and her blonde hair is only magnifying the issue. Plus, her blue eyeshadow doesn't really support our case for bringing it back.

  • BEST: Kerry Washington

    Look at that body! (We mean Washington's hair, of course.) The 36-year-old actress' thick curls frame her face perfectly and accentuate her chestnut highlights. And her berry lip gloss is a nice pop of color.

  • BEST: Kate Upton

    This Sports Illustrated swimsuit model's pared-down hair and makeup are quite refreshing. When your hair is cut into bouncy loose layers like Upton's, all you need is a little mascara and eyeliner.

  • BEST: Princess Charlene of Monaco

    It's official! Purple lipstick is the IT shade of the season. The deep magenta color is striking against the royal's glowing complexion.

  • BEST: Elizabeth Hurley

    The breast cancer awareness advocate is pretty in pink with her flushed cheek color and glossy lips. Hurley's lush waves and lashes add the finishing touch.

  • BEST: Sandra Bullock

    We can't help but gasp over the gorgeous red carpet looks the "Gravity" star has been wearing these past few weeks. And this super straight hair and brown smoldering eye makeup is one of our favorites.

  • WORST: Shenae Grimes

    Are you under there, Shenae? We can barely see the "90210" actress underneath her dark and heavy bangs hairstyle. Plus, her complexion appears a tad orange.

  • WORST: Alicia Keys

    Keys sure knows how to rock a pompadour, but she could use some help choosing the best makeup shades for her skin tone. That shade of blue-gray shadow on her lids reads harsh, and the tomato red lipstick isn't flattering at all.

  • WORST: Roselyn Sanchez

    The "Devious Maids" actress' low chignon is too severe, and the way her strands are wrapped around her head makes it look like she's wearing a turban.

  • WORST: Gina Gershon

    We hate to admit this, but we prefer the blonde wig dons as Donatella Versace in the upcoming TV movie "House of Versace" over her naturally frizzy hair. Gershon is in desperate need of a deep conditioner.

  • WORST: Camilla Belle

    When you're lucky to have some of the best brows in Hollywood, you really don't need to do much. Belle's top knot-and-bob combo makes the young star look as though she really didn't put much thought into her appearance.

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