1 of 51
Giving her tangerine mini a fresh twist with contrasting bright-blue Isharya earrings and nails (plus a Vahan bracelet), the I Got This commands attention at an L.A. book signing.
2 of 51
The actress lends some edge to her Donna Karan frock, opting for a plunging neckline and wide belt, plus simple pumps, at the AFI awards in Beverly Hills.
3 of 51
The Aussie supermodel celebrates her new role as Qantas Airways ambassador, wearing an arabesque, cap-sleeve Georges Chakra Couture red sequin dress, Tresor earrings and golden platform peep-toes to the Spirit of Australia bash in Hollywood.
4 of 51
A cocked fedora lends the ‘s look an air of intrigue, while the head-turning accessories keep it funky and fun, while she’s out to lunch in L.A.
5 of 51
At a Critics’ Choice Movie Awards afterparty in Hollywood, the is all sparkle in a black sequin mini and high-shine sandals.
6 of 51
At the Showtime TCAs in L.A., the actress takes her look from Shameless to ladylike, pairing a girly gray Ralph Lauren Blue Label dress and tweed blazer with Ralph Lauren Vintage Collection Jewels and a Ralph Lauren Collection satchel and shoes.
7 of 51
VANESSA MINNILLO LACHEY
The brand-new visits N.Y.C.’s SiriusXM studios in a flirty black Camilla and Marc frock and pointy-toe pumps.
8 of 51
To pick up the Critics’ Choice Award for best comedy alongside her fellow Bridesmaids cast mates, the actress wears a simple peplum-accented shift with similarly classic black accessories and H. Stern jewels.
9 of 51
The Covert Affairs actress tops a printed, cropped jumpsuit with a draped white blazer and coordinating pumps at the Gershwins’ Porgy and Bess N.Y.C. premiere.
10 of 51
Also at SiriusXM in N.Y.C., the iCarly actress picks playful polka dots, giving the girly print a little edge with a red jacket and biker boots.
11 of 51
Looking sweet and sunny for the Today Show’s 60th anniversary bash, the anchor adds extra shine to her yellow sheath with metallic gold accessories.
12 of 51
Opting for high drama at the London premiere of her major directorial debut, W.E., the takes center stage in a Jean Paul Gaultier couture velvet dress, Dolce & Gabbana lace cape, Van Cleef & Arpels jewelry and red fingerless gloves that match her scarlet pout.
13 of 51
Keeping it simple and sleek on her book tour, the Weight Watchers stops by an N.Y.C. store in a figure-hugging (of course!) black sheath, David Yurman hoops and cap-toe platform pumps.
14 of 51
To pick up her People’s Choice Award for best TV drama actress in L.A., the Vampire Diaries star selects an envy-inducing Kelly green Elie Saab dress, worn with J. Maderne jewels and a Lauren Merkin clutch.
15 of 51
Looking more covered up than she has been lately, the attends a Weinsten Company and Audi-sponsored L.A. bash in a mock-turtleneck mini, subtle bangles and two-tone Mary Janes.
16 of 51
In a structured Reem Acra corset dress, a golden Etro choker, and sparkling sandals, the How I Met Your Mother star is on hand at the People’s Choice Awards to fete the show’s win for best TV comedy.
17 of 51
Also at the Weinstein Company bash in L.A., the Mission: Impossible – Ghost Protocol actress flaunts her assets and pulls off a daring second-skin leather sheath with a scalloped hem and pointy-toe pumps.
18 of 51
Also at the People’s Choice Awards, the expectant mom sheathes her baby bump in a flapper-inspired, tomato red Alice + Olivia shift, worn with VRAM for Gray Gallery jewels and peep-toe pumps.
19 of 51
Showing off her Dancing with the Stars-toned bod, Cheryl hits the People’s Choice Awards in a Chagoury Couture one-shoulder, high-slit dress, platform pumps and Simon G gems.
20 of 51
Elsewhere in L.A., the grabs a bite in a fitted blazer, a very on-trend pleated skirt and wedge booties.
21 of 51
To see her show Pretty Little Liars win the People’s Choice Award for favorite cable TV drama, the actress looks flirty in an Alice + Olivia full-skirted frock, Ippolita Silver jewels and Ruthie Davis pumps.
22 of 51
23 of 51
At the same event, the My Week with Marilyn complements her reddish do with an ivory, half-pleated Versace shift, studded belt and champagne sandals; she finishes the look with a Forevermark bangle and ring.
24 of 51
The showcases her whittled waist and mind-boggling curves in a mustard origami Roland Mouret shift, patent platforms and an orange-crush pout while celebrating her Good Housekeeping cover in N.Y.C.
25 of 51
’s pairs her hard-earned tan with textured, black separates at DoSomething.org and Aeropostale, Inc.’s 5th annual Teens for Jeans kickoff in L.A.
26 of 51
The Help gears up for this Sunday’s Golden Globes in a J. Mendel crinkle dress, Lanvin clutch, Jack Vartanian jewels and metallic peep-toes at the National Board of Review Film Awards gala in N.Y.C.
27 of 51
The In the Land of Blood and Honey dons a luxe wide-lapel Michael Kors trench and champagne satin peep-toes for the film’s Washington, D.C., premiere.
28 of 51
A Dangerous Method’s subtly shows some skin in a lace-bodice Nina Ricci frock worn with black tights and a quilted clutch to the National Board of Review gala in N.Y.C.
29 of 51
At the same star-studded event, Carey slips into a shimmering ombré Lanvin dress and belt, adding an embellished clutch and tan cage heels.
30 of 51
Clad in a black-and-gold sequin Jenny Packham mini, pointy-toe pumps and simple studs, the actress attends the Disney/ABC TCA event in Pasadena, Calif.
31 of 51
The relative red-carpet newcomer looks like an old pro in her fitted, embroidered Zac Posen frock, black sandals and Harry Winston gems at the National Board of Review gala in N.Y.C.
32 of 51
Taking a break from her all-black routine, Rooney goes with a scarlet Valentino lace-illusion frock for the Rome premiere of The Girl with the Dragon Tattoo.
33 of 51
Back in N.Y.C., selects a plunging silk blouse, leather pencil skirt and pumps – all by Salvatore Ferragamo – for the New York Film Critics Circle Awards.
34 of 51
Putting her own spin on casual suiting, the pairs a blazer with leggings, knee-high socks and boots at the Hollywood premiere of Joyful Noise.
35 of 51
She may have a new do, but fashion choices are Old Hollywood – check out that curve-hugging, fire-engine-red gown! – at the FIFA Ballon d Or gala in Zurich, Switzerland.
36 of 51
After warming up her trademark pixie, the My Week with Marilyn selects a Band of Outsiders dress and Chanel pumps for an L.A. screening of the film.
37 of 51
In a shimmering mermaid-esque frock, silvery shoes and Harry Winston diamonds, the actress wins the best supporting actress award at the New York Film Critics Circle Awards.
38 of 51
39 of 51
The model heads down under for her role as the ambassador of Australian Magic Millions (a horse race and carnival), hitting the beach in a gathered emerald-green dress, contrasting rust heels and an eye-catching hat.
40 of 51
Also at the New York Film Critics Circle Awards, the actress is elegant in an iridescent-pink one-shoulder dress, finished with a high-shine clutch and Sergio Rossi pumps.
41 of 51
To fete pal Stella McCartney’s new store in N.Y.C., the selects a floral-patterned mini, topped with a two-tone coat, tights and sculptural contrast-platform heels.
42 of 51
Working her signature effortlessly glam style at the Palm Springs International Film Festival, the wears a softly pleated Elie Saab halter with Jimmy Choo sandals, stud earrings and a glittering bracelet.
43 of 51
Continuing to be herself stylewise, the American Idol picks a standout tangerine mini worn with ankle-strap pumps and Pomellato bracelets to the FOX show’s TCA panel in Pasadena, Calif.
44 of 51
One of PEOPLE’s best dressed of 2011 continues her red carpet reign in a violet lace-front Prabal Gurung dress worn with T-strap peep-toes and a Pomellato ring at the St. Jude Children’s Research Hospital benefit in Beverly Hills.
45 of 51
The opts for a slightly more toned-down look at the TCA red carpet, selecting a tiered teal T-shirt dress with a sexy side slit and strappy sandals, plus long, loose waves.
46 of 51
My Week with Marilyn’s star attends the Palm Springs International Film Festival in a shimmery champagne dress with embellished bodice by Miu Miu, accenting the look with a simple cuff and bronze Prada sandals.
47 of 51
48 of 51
49 of 51
At a Variety and Mercedes Benz-hosted brunch for the Palm Springs festival, the Golden Globe-nominated ” goes green in a silk Reed Krakoff modernly trimmed with black accents, including strappy heels and a slim Lanvin clutch. She finishes the look with Cartier jewels.
50 of 51
Putting on makeup may not be her forté, but putting on a killer outfit certainly is! Nicole wears a pale pink oversize blazer, dazzling leggings and taupe patent pumps while promoting the new reality competition series Fashion Star in Pasadena, Calif.
51 of 51