Last Night's Look: Hit or Miss?

The gets seriously sexy at the Hollywood premiere of The Last Song in a leather Thomas Wylde dress with ruffled shoulder detailing.

heads to the L.A. premiere of The Last Song in skinny J Brand jeans, an antler-print tee, sequined jacket – and newly brunette hair.

Joining her sisters for dinner in Miami, cuts a trendy figure in a white belted minidress and brown platform sandals.

heads out and about in L.A. wearing a tiered ruffled blouse paired with a button-up jacket and black leggings.

With a smile as bright as the day, the takes a stroll in Brentwood, Calif., in black skinny jeans and a cardigan-topped white tee.

takes a neutral approach in her black shorts and boyfriend blazer, a white blouse and gray accessories at the Ann Taylor fall preview in N.Y.C.

adds a little edge to a London Show Rooms event in New York in a floral-embroidered leather-and-lace dress and Casadei pumps.

The Mad Men vixen slips into a curve-hugging LBD and T-strap shoes for the Ann Taylor fall preview event in New York City.

The gets a little wild in a faded leopard-print blazer, distressed jeans and platforms to celebrate the first anniversary her of shoe club Shoedazzle.

not the only star loving leopard prints. strolls in Beverly Hills wearing a top in the print, paired with skinny black leggings and a blazer.

The heads to the Ecco Domani Fashion Party in N.Y.C. in an elegant sapphire Alexander McQueen dress with exaggerated shoulders.

Wrapping her black shirt-dress with a wide belt, the brings her signature style to the launch of her line at Tsum in Moscow.

In a frosty ice-blue Christian Siriano sheath – and eye shadow to match – the actress fits right in with the elegance of the Ecco Domani Fashion Party in N.Y.C.

Awards season might be over, but the continues her red carpet success with a one-sleeve Vionnet dress at the Nanny McPhee premiere in London.

Darting to Dash – her boutique in Miami – Kourtney plays up her curves in a black romper accented with a satchel, shades and platform sandals.

Keeping casual for the premiere 3D hockey telecast at Madison Square Garden in N.Y.C., the Big Love star rolls up her distressed denim and adds a blazer and tee.

The gets all dressed up in head-to-toe Proenza Schouler, including a patterned shift dress and lace-up platform booties, and Melissa Joy Manning earrings for the Tribeca Film Festival launch party at the W Hotel in Los Angeles.

Spring has hit Los Angeles, and isn’t wasting any time trying out the season’s hottest trends starting with a belted chambray shirt dress paired with a floppy hat, studded bag and flat strappy sandals.

The former Dancing With The Stars makes a stylish appearance in a silver-and-white striped sequin mini, Skova Design beaded bracelet and gray ankle-strap pumps at the CBS studio lot in Los Angeles for gifting event.

Showing off her new curly bob, the now single star is all sparkles in a metallic 3.1 Phillip Lim dress and matching platform sandals at the opening of the Esprit store in New York City.

The does her best California cool in a printed black minidress, gold-rimmed aviator shades and taupe flip-flops while staying connected in West Hollywood.

Taking a look right out of Betty Suarez’s closet, the Ugly Betty tops a belted black sheath with a striped-front coat and peep-toe pumps while promoting her new movie How to Train Your Dragon in New York City.

The jewelry designer shows off her latest collection of her Grayce by Molly Sims in style with a belted, watercolor-print Etro sheath and patent nude pumps at her launch event at Henri Bendel department store in New York City.

Keeping it casual, the actress tops her navy-and-white frock with a fitted jean jacket – all from Esprit – and suede pumps for the opening of the label’s New York City store.

is right on trend in a black boyfriend blazer over a striped tunic and leggings, accessorized with chunky gold jewels and peep-toe pumps for the annual Geffen Gala in L.A.

Paying homage to late designer Alexander McQueen, rocks a belted bubble-hem blazer over cropped harem pants – both from his namesake label – with platform pumps at the N.Y.C. screening of Why Did I Get Married Too.

Adding her own stylish touch to the streets of Miami, all eyes are on in her cuffed blazer, distressed denim and cage booties.

No bedhead here! The is perfectly stylish – and well coiffed! – in a draped Max Azria watercolor dress and nude platform sandals for an early stop on Good Day New York.

The starlet bringing some 90210 glam to London in a metallic-belted little black dress topped with a beaded jacket, studded gold clutch and suede booties at the European premiere of Kick-Ass.

The newly engaged keeps it sweet in a pleated lilac Alberta Ferretti minidress and nude suede sandals for the annual Geffen Gala in L.A.

Showing off her bad-girl side, the 90210 starlet tops high-waist black pants with a studded leather jacket and belly-bearing top for the Alternative Apparel Collection Presentation in Los Angeles.

Highlighting her curves, the How to Train Your Dragon wraps her strapless Milly jumpsuit with a patterned belt for the movie’s L.A. premiere.

She’s earned her sartorial stripes! ignores the fashion caveat about horizontals, rocking a slimming gray and white frock in the pattern.

Looking sexier than ever, the Sex and the City star channels her onscreen character Samantha at the Laurence Oliver Awards in London in a ruffled ivory one-shoulder dress and nude pumps.

Giving living proof of what a little hoofing can do, the Dancing With the Stars alum is as svelte as can be in a springy print, platform sandals and retro curls for the opening of the Odd Molly boutique in Beverly Hills.

The spotlights her silhouette at the Laurence Olivier Awards in London with an abstract print gown accented with classic jewels.

Layering her way to sexy, the 90210 actress tops her leather skirt and printed blouse with a long blazer and draped with chains at the SING! Concert benefitting Camp Ronald McDonald in L.A.

Looking demure at the Genesis Awards in Beverly Hills, Kristen wears a tiered and ruffled Monique Lhuillier dress with sheer embellished shoulders.

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