This Is Why We Know Allison Williams Will Bring Her A-Game to Peter Pan

At the 2013 Met Gala, Allison showed off her inner rebel with a dramatic Altuzarra dress that included lace and sheer panels.

You might expect a look with a bit more edge for the MTV Video Music Awards, but Allison offered a fresh alternative in this ethereal design.

At Diane von Furstenberg's Spring 2014 runway show, Allison looked completely effortless in a long-sleeved body-con minidress.

Allison attended the Reed Krakoff runway show in a geometric design that she completed with go-to wardrobe staples.

Allison's Oscar de la Renta dress was cute and quirky but not overwhelming. We love how her metallic pumps added an element of surprise.

When Allison rocks a jet-black look, she refrains from coming off as too fierce by adding details like bangle bracelets and a gold belt.

While some stars might get lost in this dress, we think Allison gave it character at the 65th annual Emmy Awards.

The halter-style top of this monochromatic colorblock dress infused a subtly casual vibe into Allison's look.

Allison plays around with her neckline often, and this was one of our favorite silhouettes on the star.

Her all-white separates got a major boost from an oversize clutch and a crisp, neon coat.

Allison sported one of our favorite looks at the CFDA and Vogue 2013 Fashion Fund celebration. We love the sheer panels that played up a couple of totally straightforward, movable pieces.

A long, lacy frock played to Allison's sweet side.

This deep indigo shade worked wonders for Allison, with a slight shimmer and some simple jewelry.

We loved Allison's Altuzarra midriff cutout dress as a subtle way to show a hint of skin.

For a superfancy event, Allison has proved time and time again that it pays to bring the drama, this time with a striking train.

Allison can pull off the sultry look in nude leather just as well as she can in girlie silhouettes.

At the Girls season-three premiere, Allison looked sophisticated and polished in this knee-length Christian Dior number.

Allison's never one to shy away from fresh, classic separates.

We love how Allison played up the gilded appeal of her dress with a pair of metallic heels.

At the 71st annual Golden Globes, Allison chose this striped Alexander McQueen number, which was the perfect cross between elegant and edgy.

Allison often highlights her styling tricks by tying up her hair. We love the way she matched her lip to the pattern in her geometric-cut dress.

At Christian Dior's haute couture show during Paris Fashion Week, Allison played up her leather pants and tunic with a pair of striking pumps.

Nothing is too matchy-matchy, too quirky, or too striking for Allison to pull off.

We're obsessed with this retro, monochromatic look that Allison sported at Diane von Furstenberg's Journey of a Dress party. With a red lip and a side part, Allison put her sweet spin on the ensemble.

Allison sported an avant-garde look for the 40th annual People's Choice Awards, proving that cobalt blue is definitely one of her power colors.

At the 2014 Vanity Fair Oscar Party, Allison wowed in a hot-pink, floor-sweeping gown with an open back.

Allison went the casual route for a Girls event in suede trousers, nude-colored pointed-toe pumps, and a slightly sheer blouse.

At the 2014 Met Gala, Allison matched her red-orange gown to her clutch perfectly and completed the look with a swept-up hairdo and simple silver jewelry.

Allison attended Christian Dior's 2015 cruise show in a slightly androgynous oversize jumper, which she balanced with a cinched waist and elegant earrings.

Allison Williams made an on-trend fashion match when she paired a metallic peplum blouse with a black leather skirt at a Barneys New York event in NYC. We also love the pop of color via her orange-and-red statement earrings by Irene Neuwirth.

Allison Williams exuded dark glamour in a black lace Oscar de la Renta dress at the Phil Spector NYC premiere.

During a visit to the Elvis Duran Z100 morning show in NYC, Allison Williams stuck to her sweet aesthetic in a black sleeveless lace dress, then fancied up her feet via navy satin pumps.

Allison hit a sophisticated high note pairing a lily-print top and matching pencil skirt, both by Prabal Gurung, with gold cap-toe Schutz pumps to celebrate her Boston Common cover in March 2013.

We caught up with the style-setter recently, and here's what she had to say about her style. "I try to wear things that I know I won't look back on in agony. I'm kind of just drawn to things instinctively. If there are things that I think are daring but interesting, I'll usually go for that. And there are also staples that I'm drawn to. I think it's about keeping everything varied. I also really like color, which I didn't always like. I encourage people to wear as much color as possible. And I'm very excited to see what is going to be around in the Fall."

Allison chose a little black Christian Dior confection — complete with double-breasted buttons, miniature lapels, and side pockets — to go with dazzling Van Cleef jewels and pointed pumps at the NYC premiere of Girl Rising.

From the lace bodice to the statement bow detail, we love everything about the Oscar de la Renta sheath Allison chose for the 2012 pre-Emmys party in West Hollywood, CA. She kept her dress from looking too girlie by opting for a high-wattage hue, rose-gold satin pumps, and effortless curls.

At the 2013 Vanity Fair Oscars soiree, Allison was the epitome of Old Hollywood glamour in an all-over embroidered Valentino gown.

Sitting front row at Peter Som at the Spring '12 show, Allison tucked a sleeveless white blouse into high-shine brocade trousers, then slipped on a pair of navy-and-gold bow pumps to complete her look.

The season-two NYC premiere of Girls brought out the bold and playful side of Allison, as she swapped her signature romantic style for this showstopping Altuzarra confection, complete with a gold-embellished bodice and black patchwork skirt.

With its opulent mix of red-and-black embellishments, Allison's L'Wren Scott confection took this sequined dress to new heights. She completed her look with loose waves and a sexy smoky eye.

Allison looked statuesque in a strapless magenta column gown by Ralph Lauren Collection at the 2012 Met Gala.

Allison attended the HBO afterparty for the Golden Globes in a plunging J. Mendel halter gown with Lorraine Schwartz jewels.

Allison struck a pose in a pastel-pink Peter Som dress at the CFDA/Vogue Fashion Fund Awards in NYC. The sheath's feminine hue complemented its sexy cutouts in a perfectly contrasted way. Strappy Alejandro Ingelmo sandals and smoldering eye shadow rounded up her party style.

From its perfectly contoured bodice to its elegant trumpet skirt, when we spotted Allison walking the 2012 Emmys red carpet in this emerald Oscar de la Renta confection, we were green with envy.

Allison's strapless KaufmanFranco column gown exuded sophistication with a dash of sex appeal at the 2013 Grammy Awards.

During NYFW Fall 2013, Allison opted for another lace ensemble, this time styling a delicate silk and lace Jason Wu design with opaque tights and sweet satin pumps.

Channeling her inner Winter princess, Allison brought high-octane glamour to the 2012 UNICEF Snowflake Ball in an icy blue Naeem Khan gown, complete with sparkling silver appliqués.

Once again, Allison showed off her love of hot pink donning a ruffled Donna Karan number at the 2012 Breast Cancer Research Foundation party in NYC.

At the 50th Anniversary Gala Salute in 2012, Allison channeled the 1920s with a twist, styling her allover embellished Ralph Lauren dress with diamond ball earrings and a retro updo.

Allison showcased a monochromatic ensemble — a cropped metallic sweater and peplum leather pencil skirt — with satin ankle-strap pumps at Peter Som during Spring 2013 NYFW.

At the NYC premiere of Makers: Women Who Make America earlier this year, Allison put a modern spin on the classic LBD working a shimmering Sophie Theallet number with patent black pumps. She accessorized her ladylike look with a sleek chignon, a red-and-black minaudière, and a matching manicure.