ALC

Katie Holmes stopped by Jimmy Fallon's studio in NYC looking understated chic in Isabel Marant, Alexander Wang, and A.L.C. Up top she wore this T by Alexander Wang silk camisole ($195), topped with this cozy Etoile Isabel Marant knit cardigan ($418). On bottom she sported these A.L.C. leather pants ($1,175) and tan suede Isabel Marant bow pumps. If you can't afford Katie's high-end ensemble, re-create it by pairing your favorite white camisole with leather leggings, a printed knit cardigan, and less-expensive bow pumps.

At an LA luncheon celebrating ShoeMint's one-year anniversary, ShoeMint designer Rachel Bilson posed for photos in a fashion-forward ensemble: this printed maxi shirtdress by A.L.C. ($338, originally $676), topped with this Helmut Lang black tiered blazer ($670). For accessories, Rachel naturally chose ShoeMint black ankle boots ($80) and tiny stud earrings to match her tough vibe. Score Rachel's exact dress — on sale! — blazer, and booties to add zest to your Fall wardrobe.

Kristen Stewart has been on an impressive fashion roll lately with a series of enviable looks. First she shocked us in Balenciaga, then she got wildly colorful in Peter Pilotto, and now the actress worked an edgy glam vibe in this A.L.C. wool and leather dress ($1,296) at the On the Road movie screening in NYC. She continued the black theme via a black quilted Balenciaga jacket and Barbara Bui cutout sandals, then accessorized with a couple of gold bangles and this exact Iwona Ludyga tribe beaded flag bracelet ($68). Shop Kristen's exact dress and bracelet now to nail her latest all-black look.

Hilary Duff looked casual and polished in this red A.L.C. contrast-trim tank ($295), cuffed skinny jeans, and nude studded Christian Louboutin flats — available in black here ($995) — while running errands in Sherman Oaks. The new mom completed her daytime look with an oversize monogram Louis Vuitton tote ($900), a no-fuss updo, and her cutest accessory, baby Luca. Re-create Hilary's LA look with her exact top, denim skinny jeans, and studded flats for a day of errands or swap the flats for these studded Christian Louboutin pumps ($1,195) for a fancy upgrade.

At the NYC screening for her new movie On the Road, Kristen Stewart struck a pose in a white Balenciaga button-down blouse, contrast-waist ALC trousers ($415), and strappy Jimmy Choo sandals. We especially love the way she worked her top: tucking it into her pants and leaving it open to reveal a satin charcoal tank. The actress accessorized with a silver open cuff, matching ring, and square gold pendant, then completed her screening style with smokey makeup and an effortless updo. Shop Kristen's exact trousers to pair with a white button-down and strappy black sandals for a menswear-inspired style or pair them with this white peplum Tibi blouse ($250) for a feminine twist.

Gwen Stefani headed into a studio in Culver City donning an appropriate rock-and-roll look of white-trim cuffed A.L.C. trousers ($415) and a denim vest. We love how Gwen's denim topper and embellished mustard Christian Louboutin pumps added an unexpected edge to her business-like trousers, while her tortoiseshell shades and signature red lip upped the glam factor. A silver cuff, double-wrap necklace, and perfectly tousled top knot finished off her street style. Score Gwen's exact trousers to pair with a jean topper and yellow pumps for your next concert, or swap the vest and vibrant pumps for a crisp white button-down and red patent pumps for a lunch meeting.

Jennifer Garner promoted her new flick, The Odd Life of Timothy Green, in NYC in a navy-and-black leather paneled dress and black peep-toe mary jane pumps, both by Yves Saint Laurent. While leather paneled dresses are not new on the scene, Jennifer's look reminded us how chic and edgy the trend can be when done right. We also love Whitney Cummings's black-and-white leather paneled dress for a more dramatic effect and Khloe Kardashian's A.L.C. black-and-tan leather dress ($1,150) for a subtle approach. Depending on the color scheme you go with, leather paneled dresses can be worn everywhere from the boardroom to a fancy soiree. To get the celebrity-favorite look, shop our favorite picks below.

Not only does Olivia Wilde look good, but she does good, too. The actress has teamed up with Alternative Apparel to create this limited-edition army canvas backpack ($138) in the name of charity. For every bag sold, proceeds will benefit the Academy for Peace and Justice in Port-au-Prince, Haiti. At the launch event in NYC, Olivia sported her backpack with this A.L.C. printed maxi skirt ($434, originally $621), a black racerback tank, and brown ankle-strap sandals. Score Olivia's bag to wear with her exact skirt or throw it on with more casual jeans.

Katie Cassidy looked smashing at the TCA Summer 2012 Party, rocking a red mini skirt, paisley A.L.C. top ($326), and black peep-toe mules. Her bold look was stylish on its own, but her layered arrow and quartz necklaces, statement rings, and dainty cross bracelet added unexpected edge to her chic LA look. Katie's red-carpet ensemble combined feminine details and edgy accents flawlessly, while the playful paisley print of her top injected the perfect amount of flair. Style a paisley top and bold red skirt with leather peep-toe mules and glam-rock jewelry for your next night out.