Celeb Fashion Hit or Miss?

The reality star transforms herself into a modern goddess in her one-shouldered silver gown at the Flaunt 10th anniversary party and Annual Toy Drive in L.A.

Joining Kardashian at the Flaunt 10th anniversary party, The Spirit star is sweet and chic in a ruffled turquoise Michael Kors dress and C. Greene hoop earrings.

The Bedtime Stories actress is a dream in her black-belted white Azzaro minidress at the film’s Los Angeles premiere.

The Day the Earth Stood Still star goes for a bold take on the LBD in her cut-out Givenchy by Riccardo Tisci dress at the film’s premiere in Tokyo.

The actress keeps it simple in a navy wrap dress and black accessories at the premiere of Bedtime Stories in L.A.

The British singer steps out in a revealing all-black outfit – check out that sheer shirt! – while out and about in London.

The Marley & Me star stops New York City traffic in her pale pink Valentino dress, black trench and trendy rosette-topped Valentino heels accessorized with a chic python Ferragamo bag as she leaves The Late Show with David Letterman.

Bringing her fashionable tour stateside, the actress lights up the red carpet in a sunny yellow floral Bill Blass gown and Van Cleef & Arpels jewels for the L.A. premiere of The Spirit.

Mendes’s costar takes a sweet approach in a flowing white vintage Bob Bugnard pleated gown, Fred Leighton jewels and metallic Louboutin platforms for their movie’s L.A. premiere.

The funny lady steals the spotlight at the Yes Man L.A. premiere in her body-hugging navy Hervé Léger by Max Azria dress, retro curls and YSL platforms.

The Yes Man star is the picture of winter in her silver Erin Fetherston mini dress, sparkling tights, Van Cleef & Arpels jewels and matching satin shoes for the movie’s L.A. premiere.

Getting into the festive spirit, the young star sparkles in her glittering Monique Lhuillier sequin pants, a Veleska necklace and white Enza Costa Rogue tank at the pre-Golden Globe Awards party in Hollywood.

The star pairs her Helmut Lang leather leggings with a ruffled leather vintage bustier, YSL clutch and sexy patent Louboutin heels for the Hollywood Foreign Press Association Salutes Young Hollywood event sponsored by InStyle.

Relying on the classic little black sweater dress, the 90210 star adds a metallic touch with her belt and gold heels for the Hollywood Foreign Press Association Salutes Young Hollywood event.

The actress dazzles at the L.A. premiere of The Wrestler in a iridescent sequined Derek Lam dress and black pumps.

Talk about stealing the show! The Seven Pounds stunner takes the red carpet by storm at the film’s premiere in a caramel silk crepe Bottega Veneta dress, turquoise Neil Lane statement earrings, Ippolita bangles and Jimmy Choo heels.

Showing off her super-svelte figure in black trousers, a satin top with blouson sleeves and a Borgioni necklace, the star of The Day the Earth Stood Still hits the film’s Japanese premiere in signature elegant style.

The Prom Night actress debuts brown locks at the Musicians Give Back charity event in L.A. and highlights the new look with a chic minidress and asymmetrical leather jacket.

The actress hits the Seven Pounds premiere in L.A. in a jersey gown draped at the top and glimmering David Yurman jewelry.

Channeling sirens of the silver-screen, the auburn-haired star of The Wrestler holds her own at the film’s premiere in a beaded bias-cut gown and Neil Lane jewels.

The Hills star gets chic for the D&G flagship opening on Roberston Boulevard in L.A. in a black chiffon cocktail minidress from the label, round-toe pumps and a bow-tied headband.

Staying sexy on the Revolutionary Road red carpet in L.A., the actress pairs a crystal-embellished, one-shoulder Balmain dress with classic satin Christian Louboutin peep-toe pumps and Fred Leighton jewels.

The stylish mom sizzles at the D&G store opening in a black turtleneck and chiffon bubble skirt from the Italian house.

She’s perfected casual chic! The actress heads to a children’s charity event at a Harlem school in superskinny jeans, elegant flats and a classic trench.

Amplifying her superstar shine, Bilson pairs a midnight blue sequined D&G jacket and white top with skinny jeans and pumps as she hosts the D&G store opening benefiting the Art of Elysium.

From the tousled bob to the chic silhouette of her cocktail dress, the supermodel proves she knows sexy at the premiere of Germany’s Next Top Model in Munich.

The Hills star is the picture of elegance in a white chiffon gown wrapped at the waist with a black satin bow at the 3rd annual benefit gala for charity:water in N.Y.C.

The reality star sizzles in a black and pink floral D&G dress, heels and black fishnets at the label’s Robertson Boulevard store opening.

The voice of Princess Fiona turns up to support the new Broadway musical version of Shrek in a beaded white Bill Blass dress and rosette-topped Brian Atwood heels.

The singer – who recently spoke to PEOPLE about her style – is a standout in a dramatic black Reem Acra gown at the 40 Principales Awards 2008 in Madrid.

The star continues promoting her signature fragrance Fancy in a ruched red satin Nicole Miller dress, peep-toes from her own line and a black cardigan at Macy’s South Coast Plaza in Costa Mesa.

The singer keeps it simple in a black-and-white houndstooth dress at the Z100 Jingle Ball concert at Madison Square Garden.

The reality star flaunts her famous curves in a gold wrap dress at the Sixth Annual Video Game Awards in Culver City.

The star is white-hot in her draped Balenciaga gown at the amfAR Cinema Against AIDS gala in Dubai.

The actress visits Wall Street to ring the bell at the New York Stock Exchange as part of the Coach Cares initiative in a belted plaid dress and oxford heels.

The Ugly Betty star braces against the New York chill, covering her beaded Oscar de la Renta sheath dress with a chic black Stella McCartney trench coat at the premiere of Shrek: The Musical. The star also added Judith Ripka jewels and Jimmy Choo heels and a clutch.

The Yes Man star is crisp in her white blouse and full gray skirt at the Roman premiere of the comedy.

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