Last Night's Look: Hit or Miss?

The Mad Men star is miles away from Betty Draper’s prim ’60s glamour as she steals the limelight front-row at Versace in an angular red fringed dress and bouffant updo during Milan Fashion Week.

With long blonde tresses cascading the shoulders of her black blazer-topped dress, manages to make even all-black look sunny, with C. Greene jewelry, at a Livestrong Foundation charity event in Hollywood. The

Highlighting her toned figure, slips into a red-carpet-sweeping Narciso Rodriguez gown accented with a panel of peekaboo fabric for the Vanidades 50th anniversary celebration in N.Y.C.

Looking just as at ease on the red carpet as the runway, shows off her supermodel curves in a shimmering maroon Calvin Klein Collection gown and earrings by Sethi Couture for Fragments and Finn at a Brazil Foundation gala in N.Y.C.

adds a touch of sexy to her ladylike yellow chiffon dress with a sweep of scarlet lipstick at the Country Music Hall of Fame’s All for the Hall fundraising concert in L.A.

The shows off her new blonde 'do in a beige Mackage dress with nude platform pumps at the Compassion Revolution, where she pledged $1 million to help control L.A.’s pet overpopulation crisis.

’s stylish separates are perfect for the newly-cool fall weather. The star pushes up the sleeves of her brown leather jacket, adding a draped scarf to her skinny black jeans while promoting her Dream Out Loud clothing line in N.Y.C.

The Colombian covers up those famous hips in a gold-accented black ensemble for her appearance on the Late Show with David Letterman in N.Y.C.

The national for the charity lights up the PADRES Contra El Cancer’s 25th Anniversary Gala in Hollywood in a black-and-white swiss dot Gustavo Cadile dress and black pumps.

Also attending the same PADRES Contra El Cancer gala in Hollywood was teen queen , who looked ready to party in a purple one-shoulder Alice + Olivia cocktail dress and black-and-gold strappy sandals.

The actress – and author! – steps out at the photocall of Freckleface Strawberry: The Musical, the off-Broadway production based on her children’s book, in a draped metallic V-neck top, J Brand cargo capris and strappy sandals.

The Eat, Pray, Love sticks to menswear-inspired looks, donning a crisp white three-piece Stella McCartney suit, champagne blouse and scarlet pumps at the film’s U.K. premiere.

The (or is it her wax doppelgänger?) sports an orange, grey and cobalt halter dress and sheer, black tights while unveiling her likeness at Madame Tussauds in Las Vegas.

The new judge of American Idol rocks a glittery gray jumpsuit, nude peeptoes – and some seriously big hair! – during the show’s season 10 press conference in Inglewood, Calif.

brightens up the red carpet in a strapless canary and lace Valentino confection with a studded purse by the brand and nude Brian Atwood heels at the Los Angeles premiere of You Again.

The sets the gold standard in a shimmering tunic with peaked shoulders, matte leggings and black boots while signing copies of her new book Presenting Tallulah at Borders in N.Y.C.

Fall is here! The back-to-blonde star looks cozy in a chunky open-front cardigan, J Brand jeans and biker boots while running around Los Feliz, Calif.

Talk about putting your best face forward! The pop superstar dons chain-linked heels and a Richard Nicoll silk shirt dress emblazoned with a bold visage while out and about in London.

The face of and daughter Lourdes’s new juniors’ line, Material Girl, shows off her mile-long stems in a micro LBD, over-the-knee boots and her signature kohl-rimmed eyes at an event for the line at Macy’s Herald Square in N.Y.C.

keeps it California cool in a loose printed tunic, platform sandals and a large hobo on her way to a studio in Toluca Lake, Calif.

The engaged actress goes glam in a drapey, burnt-orange J. Mendel gown, Brian Atwood heels and Neil Lane jewels at the L.A. Premiere of You Again.

shows off her endless gams in a champagne and black silk frock with a bow-tie neck, tweed blazer and black booties at the launch of the eBay LookBook in N.Y.C.

The takes her style on the road, turning up at London Fashion Week in shades of olive and brown at the Burberry Prorsum show.

The bombshell plays up her curves at the Self 3rd annual Women Doing Good Awards in N.Y.C. in a peekaboo LBD by Dolce & Gabbana and leopard print heels.

The actress goes funky in tie-dyed harem pants, strappy sandals and a silk jacket at the Sundance Channel’s Iconoclasts season five premiere in N.Y.C.

The So You Think You Can Dance host toughens up a feminine red blouse with ruched sleeves, pairing it with stovepipe denim, a studded belt and a fringed hobo at an event for designer Emilio de la Morena at Harvey Nichols in London.

Also at Harvey Nichols, The City star mixes and matches a patterned skirt with a bejeweled military jacket, Charlotte Olympia pumps and an Hermés Birkin bag.

Derek Jeter’s main squeeze shines in a sequined top and draped skirt – both by Marchesa – along with House of Lavande jewelry to accept an award at the Self 3rd annual Women Doing Good Awards in N.Y.C.

The actress lives la dolce vita in Milan in a shimmering, scalloped minidress while attending the Rocco Barocco Cocktail party.

gal pal keeps it modern in a draped metallic Christian Cota gown and a bright pink lip at the New Yorkers for Children fall 2010 gala in N.Y.C.

90210’s resident bad girl plays nice in a sparkling sheath dress with draping at the hip and flower appliqué at Self magazine’s 3rd annual Women Doing Good Awards in N.Y.C.

The makes the cut in a peekaboo, high neck Roberto Cavalli dress with high-shine accessories, including a Stella McCartney purse, at a Swarovski Elements charity event in N.Y.C.

Fashion week’s front row sharpens her simple gray sheath with black details at a charity event in Manhattan.

The British beauty keeps it simply chic in a shimmery mauve and black Nina Ricci ensemble and Fred Leighton jewels at the Wall Street: Money Never Sleeps premiere in New York City.

Stepping out with her new man Louis Dowler for the opening of photographer Mario Testino’s exhibition during the San Sebastian film festival, the Oscar dares to bare in a one-shoulder black frock, highlighting her stems with nude peeptoes and Tiffany & Co. jewelry.

The Desperate Housewives brings old Hollywood glamour overseas with a floor-length lace gown and pin curls at the Par Couer Gala in Paris.

Modern Family’s brunette bombshell tames her curves in a python-printed chiffon dress and simple black pumps at a Swarovski charity auction in the Big Apple.

The flaunts her runway ready curves in a form-fitting cream dress, nude pumps, Sethi Couture earrings and a Suzanne Kalan ring during a UN event at New York’s American Museum of Natural History.

The spices up her black Maggie Norris Couture gown with red earrings, a Judith Leiber clutch and bejeweled pumps while supporting hubby Michael Douglas at the New York premiere of Wall Street: Money Never Sleeps.

The is all business in a patterned blazer, vest and skirt at the red carpet premiere of Wall Street: Money Never Sleeps in New York City.

She’s one hot wife! The Good Wife star keeps things smoldering at a party for her TV drama in a plunging red J. Mendel dress and strappy black sandals in N.Y.C.

Looking almost as sweet as the movie poster’s avian stars, heads to the Legend of the Guardians: The Owls of Ga’Hoole premiere in Hollywood in a shoulder-baring, floral Blu Moon frock and caramel platforms.

Taking her locale seriously, the is Parisian-chic in her long-sleeved minidress and thigh-high boots in the City of Light.

Celebrity designer takes a weekend casual approach in a blazer and short-shorts to promote her new jeans line at a Macy’s in Charlotte, N.C. as part of her personal appearance tour.

Continuing on her Eat Pray Love promotional tour, the is demure in a belted draped V-neck dress, dark pumps and Jamie Wolf earrings at the movie’s Parisian premiere.

The takes a break from ‘s bachelorette weekend in Las Vegas, looking white-hot in a fitted Hervé Léger mini dress and nude pumps as she heads backstage to meet the cast of Cirque du Soleil’s KA at the MGM Grand.

Milan’s never looked hotter! The slips into a curve-hugging embellished ensemble for an Italian TV appearance.

The Twenty8Twelve kicks off London Fashion Week in trademark style, topping off a menswear-inspired outfit with gold-toned accessories and decidedly feminine pumps, before taking her front-row seat at the Matthew Williamson presentation.

Last Night’s sweeps into the movie’s Toronto premiere in a shimmering black velvet Andrew Gn gown, Cartier jewels and film-star waves.

Wasting no time at all, The City star hops from one fashion week to another – in London! – looking effortlessly chic in a black zip jacket, blue laser-cut skirt and coordinating black sandals at the Julien MacDonald show.

The sparks an explosion of color as she attend the Vivienne Westwood show during London Fashion Week in a boldly printed dress and made-to-match tote.

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