1 of 52
The star sticks to her unique fashion sense in a bejeweled Missoni smock over a white gown at an amfAR benefit in N.Y.C.
2 of 52
The mom-to-be glows at the premiere of her new film The Eye in an empire blue dress by friend Narciso Rodriguez.
3 of 52
The actress makes like a flapper in her beaded and fringed Jenny Packham dress and YSL pumps at The Late Show with David Letterman.
4 of 52
The singer debuted her T-shirt for H&M benefiting an AIDS charity in a chic high-waisted skirt and peasant blouse.
5 of 52
The star is sweet in a lace-trimmed black dress and gold mary-janes at the N.Y.C. Cinema Society Screening of Marc Jacobs & Louis Vuitton.
6 of 52
The new Essence cover girl is ’70s cool in her white jumpsuit and heavy bangs at a party in her honor in N.Y.C.
7 of 52
The Project Runway host adds pop to her beaded little black dress with electric blue pumps and fuzzy coat at a party for Marc Jacobs in New York.
8 of 52
The Lipstick Jungle star celebrates the show’s premiere in an asymmetrical black frock at Saks Fifth Avenue in N.Y.C.
9 of 52
The actress suits up for the Politico Democratic Debate After Party in Los Angeles in a lantern sleeve jacket and bright red Goldenbleu clutch.
10 of 52
The actress keeps it simple in a red dress with gold accessories at the Los Angeles premiere of The Spiderwick Chronicles.
11 of 52
The former Playmate shows off her still centerfold-worthy physique in a leopard-print dress for the Celebrity Beach Bowl hosted by Matt Leinart in Scottsdale.
12 of 52
The Samantha Who? actress enters the amFAR gala in N.Y.C. in a peekaboo ombré gown.
13 of 52
The One Tree Hill star is ready for spring in her hot pink Alisha Levine minidress and strappy gold sandals at a screening for Marc Jacobs & Louis Vuitton in N.Y.C.
14 of 52
The Fool’s Gold star hit the Los Angeles premiere in a one-shouldered Lanvin dress and new bangs.
15 of 52
The Gossip Girl leaves her couture behind for skinny jeans and a silver-studded black Catherine Malandrino blouse at the “New Year, New Old Navy” event in New York.
16 of 52
The singer heads to dinner with BFF Ken Paves in N.Y.C. in a cropped quilted motorcycle jacket and flared jeans.
17 of 52
The actress takes a break from her activist activities to glam up in black and white – with bold red lips! – at the Old Navy event in New York.
18 of 52
The singer-designer makes an in-store appearance in Boston to promote her denim line wearing – what else? – her own DvB jeans.
19 of 52
Brrr! The actress bundles up in a Dennis Basso fur jacket, tweed skirt and Nancy Gonzalez purse while leaving her N.Y.C. hotel.
20 of 52
The Oscar nominee keeps it casual at the Santa Barbara Film Festival in all black.
21 of 52
The actress is elegant in an eyelet and organza black dress and heels at the Old Navy event in New York.
22 of 52
The Oscar nominee for best actress is true blue in her one-shouldered turquoise dress and yellow satin Christian Louboutin pumps at the Santa Barbara Film Festival’s 2008 Virtuoso Tribute.
23 of 52
The One Tree Hill star gives the Old Navy event red carpet the cold shoulder in her asymmetrical Castle Starr frock.
24 of 52
The actress accepts her Virtuoso Award at the Santa Barbara Film Festival in a sunny satin Maje blouse and slim Dior slacks.
25 of 52
The mom-to-be hits TRL in style in her off-the-shoulder Gold Hawk dress and loose curls.
26 of 52
The actress celebrates the L.A. premiere of her new film Over Her Dead Body in a rose J. Mendel dress, Christian Louboutin pumps and a Nancy Gonzales clutch.
27 of 52
The Heroes star is perfectly chic in her jeweled Carolina Herrera while unveiling the Godiva Decadence Suite in N.Y.C.
28 of 52
The Samantha Who? star supports pal Longoria at the Over Her Dead Body premiere in a chic black dress with long gold chains.
29 of 52
The heiress goes dotty in a gold and blue Marc by Marc Jacobs frock at TRL.
30 of 52
The actress hits a major spring trend – exotic patterns – in her loose tunic paired with patent accessories at the Blackberry Pink Pearl launch in N.Y.C.
31 of 52
Longoria’s costar is elegant in a structured strapless dress and sandals at the Over Her Dead Body premiere.
32 of 52
The youngest member of the Gossip Girl cast is sweet and sassy in her pink dress, glittering shoes and jeweled “Hello Kitty” necklace.
33 of 52
The budding actress wears her signature beanie – along with a sexy plunging sweater and miniskirt – for the launch party for the new Blackberry Pink Pearl.
34 of 52
The actress steals the red carpet from boyfriend Justin Long in her slinky, off-the-shoulder Gucci dress and clutch at the premiere of his new film Vince Vaughn’s Wild West Comedy Show.
35 of 52
The star is demure in a cream and black Derercuny dress at the Dream Keepers Awards in Los Angeles.
36 of 52
The mom-to-be hits The Late Show with David Letterman in a sexy red Dior dress and retro waves.
37 of 52
The Heroes star keeps it casual in J Brand jeans, a cropped jacket and warm scarf for the premiere of Vince Vaughn’s Wild West Comedy Show.
38 of 52
The singer covers her new auburn hair with a hoodie as she goes on a casual coffee run in L.A.
39 of 52
The Welcome Home Roscoe Jenkins actress is a knockout in a white gown and gold accessories at the film’s L.A. premiere.
40 of 52
The actress heads out for breakfast with her mother in a denim coat over all black.
41 of 52
The supermodel shows off her perfect form in a white full-skirted dress and towering black boots at a press conference during Berlin Fashion Week.
42 of 52
The actress flaunts her legs in a barely-there mini and leopard-print fur coat for a day of shopping in SoHo.
43 of 52
The Epic Movie actress gets wrapped up in a Diane von Furstenberg dress and Pierre shoes while promoting the film on New York City’s CW11 TV station.
44 of 52
The mom-to-be glows in green Herve Leroux and a jewel-encrusted Roger Vivier clutch while receiving the 2008 Modern Master Award at the Santa Barbara Film Festival.
45 of 52
The expecting star keeps her bump under chic cover in her one-shouldered Gucci gown at the G’Day Australia Black Tie gala in N.Y.C.
46 of 52
The singer shows off her new cropped cut and a sexy asymmetrical Max Azria Atelier goddess gown at the NRJ awards in Cannes.
47 of 52
The Hills star keeps it short and sweet in her navy strapless dress by Foley + Corinna at the opening of Hawaiian Tropic Zone in Las Vegas.
48 of 52
The Oscar nominee is elegant and youthful in her black Emporio Armani sheath, Prada belt and shoes, Lauren Merkin clutch and leather Religion jacket at the Director’s Guild of America Awards in L.A.
49 of 52
The Heroes star looks ready for spring in her white halter dress and long blonde curls at the opening of AI Spa in Los Angeles.
50 of 52
The singer brings back the ’80s in a ruffled floral vintage David Fielden frock, Manolo Blahnik heels and slicked back hair at the NRJ Awards.
51 of 52
Before hitting the SAG Awards, the actress went on the prowl in London in a tiger-striped sequined minidress by Michael Kors.
52 of 52
The singer tops her printed minidress with a trendy tuxedo jacket and booties at the NRJ Awards in France.