1 of 43
The is radiant in a black-and-gold, sequin Jenny Packham gown worn with Van Cleef & Arpels diamonds to the César Awards in Paris.
2 of 43
The Help’s is ultra-feminine in a full-skirted Elie Saab cocktail dress, delicate Van Cleef & Arpels jewels and Brian Atwood pumps for the Essence Black Women in Hollywood luncheon in Beverly Hills.
3 of 43
At a Vanity Fair party in Hollywood for the Eva Longoria Foundation, the fetes her friend in a cobalt-blue sheath with a prim collar and knee-high boots.
4 of 43
Wearing a shimmery, off-the-shoulder Vivienne Westwood frock, golden Casadei sandals and a relaxed updo, the actress is casually chic for a Hollywood Reporter bash in L.A.
5 of 43
The gives a simple LBD some kick with a flouncy skirt and white detailing along with a Nancy Gonzalez clutch at the Oscar Wilde: Honoring the Irish in Film event in L.A.
6 of 43
QVC’s toasts her debut on the network at an L.A. party, donning a gold-and-white cocktail dress, nude pumps and a chic square clutch.
7 of 43
8 of 43
Taking a daring dip in a sexy low-cut Cushnie et Ochs dress and Brian Atwood platforms, the steals the spotlight during her charity foundation celebration in Hollywood.
9 of 43
Brightening up pal charity event in Hollywood, Kate swathes her petite frame in hot pink silk trimmed with equally shiny black accents, including Jimmy Choo pumps, a Lauren Merkin clutch and M.C.L By Matthew Campbell Laurenza jewels.
10 of 43
She went topless for the Kardashian Kollection ad, but keeps it slightly more demure at the QVC event in L.A., wearing a black shoulder-baring dress styled with gold hoop earrings, a black weave clutch and patent heels.
11 of 43
The star mama beams in a belted marigold frock and over $225,000 of David Webb jewelry, contrasted with scarlet lips and textured platforms at the Hollywood Domino Gala in West Hollywood.
12 of 43
After vowing to shake up her red carpet style, the receives her star on L.A.’s Hollywood Walk of Fame in a tea-length patterned dress and golden sandals by Bally.
13 of 43
Taking a cue from her This Means War sexy style, the wears a curve-enhancing Michael Kors sheath and black pumps to the film’s Seoul premiere.
14 of 43
In a lace-embellished Elie Saab dress with black accessories, keeps it simple at an L.A. dinner in support of Oxfam America and The Green Carpet Challenge.
15 of 43
Her Smurfs film may have come out last year, but the is still thinking blue in a two-tone flared Roland Mouret dress, platform sandals and a Solange Azagury-Partridge ring for the Glendale, Calif., launch of her false lashes line.
16 of 43
For a night of flamenco dancing in Hollywood (which hosted!), Eva wears a Zuhair Murad ensemble of plunging, beaded top and wide-leg tuxedo trousers, plus a long fishtail braid.
17 of 43
The Shameless star channels Cinderella in an eco-friendly Oliver Tolentino illusion frock with floral appliqué and 27 carats of Chopard bling at the Global Green USA pre-Oscars party in Hollywood.
18 of 43
Supporting her Wanderlust costar , Malin chooses a crocheted salmon sweater dress, House of Lavande jewels and nude pumps at the Hollywood Walk of Fame.
19 of 43
The gone good continues to dress the part of the former in head-to-toe black, including a fur vest and a studded 3.1 Phillip Lim sweater, during a Beverly Hills art event.
20 of 43
Kristin makes a statement in a $70 chartreuse, A-line frock by H&M, Jimmy Choo cutout sandals and a charitable $49 Rachel Roy “Ghana” clutch at a Vanity Fair and Ermenegildo Zegna event in L.A.
21 of 43
Also at the Global Green USA event in Hollywood, the One Tree Hill star goes glam in a Dilek Hanif drop-waist silver column, plus Amrapali jewels and Rene Caovilla heels.
22 of 43
She knows what she likes! Sticking to a similar silhouette to her Grammy gown, the attends the Brit music awards in London wearing sheer custom Burberry plus Van Cleef & Arpels earrings and DeBeers rings.
23 of 43
Giving a familiar look a little twist with front pleating and a fresh tangerine hue, the accents her dress with a leopard-print Stark clutch, white pumps and Gray Gallery jewelry.
24 of 43
Continuing to show that skin is in, the hits London’s Brit awards in a gutsy bronze gown worn with leather gloves, chain-strap stilettos and Solange Azagury-Partridge earrings.
25 of 43
As excitement for her Oscar dress builds, the star still rarely puts a foot wrong, wearing an elegant emerald Elie Saab gown with loose waves and Jimmy Choo shoes to a Hollywood dinner in honor of Charlie Chaplin.
26 of 43
Also at the Sir Charles Chaplin event, the actress gives her ultramodern navy shift a little retro flair with voluminous curled locks and cranberry pointed-toe pumps.
27 of 43
Fittingly for an event honoring Princess Grace of Monaco, the actress looks royally pretty in a petal-tiered, watercolor navy frock, sparkling belt and platform pumps in L.A.
28 of 43
For the L.A. premiere of her film Gone, the actress counters her tough-girl movie persona with a floaty blush lace Nina Ricci dress and champagne pumps.
29 of 43
Looking like an ice queen in her knockout pale Vivienne Westwood gown and vintage Bochic earrings, the actress attends the Costume Designers Guild Awards in Beverly Hills.
30 of 43
Also in Vivienne Westwood at the Costume Designers Guild Awards, the young actress gives her classic style a bit of a punk twist with dip-dyed pink strands and Jimmy Choo sandals.
31 of 43
Sticking to her preferred minimalist style, perfectly matches her deep purple lip color to her eggplant J. Mendel dress and finishes the look with nude sandals at the Costume Designers Guild Awards.
32 of 43
The is as pretty as a peach in a feminine Honor cocktail dress and glimmering Neil Lane jewels at the L.A. premiere of her new film, The Lorax.
33 of 43
After taking a floral turn in Paris, goes bold in a custom J. Mendel silk draped gown at the Croatian premiere of In the Land of Blood and Honey.
34 of 43
Looking ready to party at a Carnaval celebration in Brazil, sparkles in a supershort AllSaints “Oyster LS” dress.
35 of 43
Appearing downright demure compared to her sexy This Means War character, covers up in a sleek black Bocanegra suit and matching cami at the ACE Eddie Awards in Beverly Hills.
36 of 43
Also kicking off Carnaval in Brazil, the teams a fiery all-red ensemble (J. Brand skinnies and a sparkly top) with nearly $300,000 of diamond jewelry by Norman Silverman and H.Stern.
37 of 43
In a knockout shade of orange, worn with golden accessories, the actress attends the NAACP Image awards in L.A.
38 of 43
“I love that it’s accessible and affordable!” the tells PEOPLE of the Marni at H&M collection, which she wore to the line’s L.A. launch.
39 of 43
With Hunger Games excitement building, the film’s star is to-die-for in a red Michael Kors sheath and sexy Barbara Bui cage sandals.
40 of 43
She’s the “Bel” of the ball! Bel Ami’s Christina stuns in a baby-blue, sequin Jenny Packham gown, worn with Casadei pumps, a Pomellato ring and Samira 13 earrings to the movie’s Berlin Film Festival premiere.
41 of 43
Sydney’s wears a drop-waist black-and-white Gucci frock with peep-toes and a studded bangle to a film festival in her hometown.
42 of 43
Embodying effortless elegance in a fitted, wine-hued Gucci gown, matching grape clutch and dazzling Maison Boucheron jewels, the hits her mark at the Goya Cinema Awards in Madrid.
43 of 43
Christina Aguilera Returns to Her Blonde Bombshell Vibes with New Hair Color
Let Kate Hudson Inspire You to Rock a Copper Lip this Fall - Here's How to Nail the Look
What’s It Like To Work With Jennifer Lopez’s Stylist? These Bloggers Got the Chance of a Lifetime!
Ariel Winter Shares Her Butt Contouring Process on Instagram
15 Rules for Finding the Perfect Wedding Dress