1 of 42
HILARY DUFF'S JACKET
The reworks her bright-orange Vanessa Bruno jacket with ease – first making it the focal point of a jean shorts ensemble, then contrasting it with a bold tribal print dress.
2 of 42
PIPPA MIDDLETON'S DRESS
affordable lace H&M mini can be worn two ways: either sexy with knee-hight boots and a fitted blazer, or sweet with a tweed jacket and ballet flats.
3 of 42
JENNIFER LOVE HEWITT'S BLAZER
A peach blazer like Jennifer’s looks just as cute with a soft pastel outfit as it does with a slightly edgier embellished top, jeans and heels.
4 of 42
KATIE HOLMES'S JUMPSUIT
Demonstrating the versatility of pieces from her own Holmes & Yang line, the first wears her silky jumpsuit with a bolero and heels, then uses it to top a lace turtleneck and T-straps.
5 of 42
ASHLEY TISDALE'S BOOTIES
Red platform booties might seem like a tricky piece to work into your wardrobe – not for , who first pairs the Alice + Olivia pair with a sleek black look, then effortlessly makes them the focal point of her Parisian-chic stripes-and-skirt ensemble.
6 of 42
OLIVIA PALERMO'S TOP
The socialite first wore her patterned Tibi top as part of a head-toe-toe ensemble in the same print, then gave the bold shirt new life by tucking it underneath a feather-print skirt and oversized fur vest.
7 of 42
NICOLE RICHIE'S SHOES
Serving as her own best model, the shows the versatility of her House of Harlow 1960 leopard booties by pairing them with a sleek black minidress one day and a casually chic tank-and-skirt look the next.
8 of 42
REESE WITHERSPOON'S SKIRT
Giving her Wren skirt a preppy or punky twist depending on her mood, the wears the piece with layers of chains, a fedora and flat booties, then dons a sweet sweater and kitten heels for another outing.
9 of 42
KHLOé KARDASHIAN'S JEANS
treats her tomato-red J Brand jeans as a neutral, adding classic chambray and leopard-print accents for one ensemble and choosing buckled shearling boots and a lacy top for another.
10 of 42
SELENA GOMEZ'S SHOES
The uses her studded, spiked Sam Edelman “Renzo” booties to toughen up a sweet dress and rev up the glam factor of a jeans-and-tee ensemble while in London. One of this year’s hottest shoe trends, the nude color is leg-lengthening whereas a black bootie doesn’t have the same effect.
11 of 42
RACHEL BILSON'S BLAZER
So much chicer than a shawl or sweater, the Vanessa Bruno jacket gives a waist-whittling finishing touch to a maxi skirt and tank at an N.Y.C. event and covers up a strapless dress while still letting the ruffles shine at a Burbank, Calif., party.
12 of 42
ALEXA CHUNG'S OVERALLS
The designer turns jean queen, wearing her deep-V overalls with a blouse and cross-body bag to shop in Sydney, and with a larger tote and braided updo for a comfy, casual traveling outfit to leave the city.
13 of 42
HEIDI KLUM'S BLAZER
The tops a slouchy tan jumpsuit and a relaxed jersey maxi with the same Smythe blazer, which gives both looks some polish and helps define her narrow waist.
14 of 42
SANDRA BULLOCK'S JEANS
Multitasking mom wears her MiH “London Boy” jeans on the go with son Louis, whether traveling in style with a scarf and wedge heels or keeping things laid back with a girlie tank and flip-flops.
15 of 42
EVA LONGORIA'S JEANS
Proving that the right accessories can take a pair of pants from sexy to sweet, the dazzles in J Brand white skinny jeans, a metallic top and glamorous drop earrings, and then tones it down for a book signing in a Elizabeth and James blouse and relaxed do.
16 of 42
KATE MOSS'S BLAZER
The newlywed signature London style never falters: Her leather-lapel blazer looks as chic with a loose-fit tee and striped trousers as it does with black shorts, studded sandals and a chain-strap bag.
17 of 42
SARAH JESSICA PARKER'S JEANS
Style icon has her relaxed days too – she loves to stroll N.Y.C. with her kids while wearing Paige flares. A textured sweater and scarf are perfect for a rainy day, while a blousy MiH chambray top and bow-adorned Gerard Darel flats are great for a park play date.
18 of 42
TAYLOR SWIFT'S DRESS
She’s one of country music’s biggest stars, but hardly a high-maintenance dresser – her Heartloom dress is fab for a sweet summer date when worn with bare shoulders and green heels, and makes it brunch appropriate with an oversized sweater and bow-adorned pumps.
19 of 42
JESSICA SIMPSON'S SHIRT
Her favorite green sweater isn’t the only thing getting lots of mileage in wardrobe: her rose-embellished denim shirt is a go-to vacation staple paired with a tee and ripped jeans or layered over short-shorts and platforms.
20 of 42
UMA THURMAN'S DRESS
The actress made her floaty white Dolce & Gabbana dress winter-appropriate with a safari jacket and oversized scarf in February, then let the frock take center stage with metallic sandals and simple gems at the Cannes Film Festival in May.
21 of 42
The makes good on her style credo by adding bold accessories to her Diesel “Pollyes” boyfriend jeans. First she paired the slouchy style with a charcoal hoodie, before redefining the look with a blouse and tasseled oxfords just five days later.
22 of 42
Not only does she love to share with sister , the is a master remixer: wearing her striped long-sleeved tee under a dress before pairing it with a coral pantsuit.
23 of 42
Never underestimate the value of a good knit! transforms her Isabel Marant pullover by swapping chambray trousers for bubblegum pink shorts – and remixes favorite booties by the designer at the same time.
24 of 42
25 of 42
There’s no such thing as a seasonal wardrobe! makes the most of a $98 Aqua jersey dress by pairing it with a structured blazer, tights and booties to combat wintry temps and with bare legs and a cardigan for warmer temperatures.
26 of 42
takes her fuzzy cardigan from polished paired with a floral mini and top chignon to funky with loose pants and layered tanks in the blink of a stylish eye!
27 of 42
She may dispense aspirational advice on her website GOOP, but is a regular recycler. Her gray sheath dress is business-like with a belt and pumps, but becomes full-on sexy when left all on its own with strappy sandals.
28 of 42
RACHEL BILSON'S BLAZER
A perfectly tailored blazer is the ultimate investment piece. uses the same style to dress up a T-shirt and jeans while in Milan and a few days later, as a waist defining topper over a frothy hot pink dress at the Dior fashion show in Paris.
29 of 42
REESE WITHERSPOON'S BOOTS
The has a handle on effortless style, expertly pairing her buttery knee-high leather boots with a summery chambray shirt dress as well as winter wardrobe staples.
30 of 42
KATE BOSWORTH'S BOOTIES
They’re the gift that keeps on giving! The can’t get enough of her suede Isabel Marant booties, wearing them with short shorts while grocery shopping in L.A. and again and with a funky, draped jersey look by the same designer at a posh cocktail party.
31 of 42
SIENNA MILLER'S SWEATER
Small price tag, huge pay off! The rocks her cropped cableknit sweater from Topshop to ward off the wintry N.Y.C. chill and then again with pink pants in balmy France.
32 of 42
NICOLE RICHIE'S JEAN JACKET
A jean jacket is timeless and oh-so-versatile. remixes hers with aplomb, pairing it with a printed mini dress and then as a chic topper to workout gear.
33 of 42
Army green shorts are a wardrobe staple for many women. Leave it to to take them from preppy with a button-down and Goyard tote to rock-star cool with a leather jacket and tough booties.
34 of 42
SARAH JESSICA'S HEELS
If you have a fabulous pair of statement heels, don’t fight the urge to wear them with everything! wears her neon Nicholas Kirkwood neon sandals with everything from jeans to evening dresses!
35 of 42
makes the most out of her buttery tan Madewell jacket, taking it from boho chic with a crocheted top to minimalist sleek over all black.
36 of 42
Not only are Roger Vivier flats stylish, they’re so versatile! From a tank and jean shorts (with Jérôme Dreyfuss purse) to a ladylike cardigan and wide-leg trousers, the neutral snakeskin shoes work with the gamut of her wardrobe.
37 of 42
JANUARY'S CROPPED JEANS
Expert fashionista Jones gives her J Brand “Gigi” jeans a menswear spin with a fedora and bright oxfords one day and a classic ladylike look with cap-toe heels and a luxe tote another.
38 of 42
Who says you can’t wear sandals when the weather cools down? Rag & Bone platforms look just as good paired with bare legs as with opaque black tights.
39 of 42
While a bold tote like Amanda Seyfried’s floral Valentino might look too fancy for everyday use, the actress expertly pairs it with a neutral evening look as well as with a striped T-shirt and tough boots.
40 of 42
LIV'S STRIPED T-SHIRT
goes from hipster in her leather skirt and leggings to sweetheart in her jumper, all thanks to her handy horizontal stripe tee.
41 of 42
Talk about versatile! takes her favorite Fiorentini + Baker boots from winter when paired with an army green parka to summer by flaunting her gams in short-shorts.
42 of 42
JULIANNE'S CARGO PANTS
Moore picks one of the season’s trendiest items – the J Brand “Houlihan” pant – for her favorite. Whether paired with a simple T-shirt for dog walking or heels and a patterned shirt for a photo call, the actress keeps her proportions in check, balancing the skinny bottoms with a fuller top.
Selena Gomez Stars in New Ballerina-Inspired Puma Campaign That'll Have You Looking on Pointe
Pregnant Chrissy Teigen Finally Meets Sophia the Robot: 'I'm Freaking Out!'
Is Kim Kardashian Really Naming Her Baby Girl Louis Vuitton West? Star Explains Cryptic Instagram
9 Seriously Stylish Coats to Make a Statement In This Winter
See Gwyneth Paltrow's Enormous Engagement Ring from Fiancé Brad Falchuk