Celebrity Dress Makeovers

From hemline tweaks to clever styling tricks, see how the most fashionable stars, from Olivia Wilde and Fergie to fashion up-and-comer Rosie Huntington-Whiteley, put a flattering spin on fresh-from-the-runway looks to show off their best assets. After all, why go ready-to-wear when you can have custom?

Zoe Saldana in Barbara Bui
For the MTV Video Music Awards, Zoe Saldana skipped the trousers from a Barbara Bui ensemble and wore the top as a mini-tunic to show off her killer legs.

A skirt switch-out turned this pleated, flowing Roland Mouret day dress into a sleek column gown for Mia Wasikowska, playing up her lean silhouette. What remained of the garnet design? An artfully-pleated neckline and shoulder-skimming cap sleeves.

When you are as beautiful as Olivia Wilde, you don't need to show much skin to steal the spotlight. The actress added a lining to the skirt of her peek-a-boo chiffon Gucci gown.

Liv Tyler paired a Fall 2012 peplum top with a slinky pencil skirt for a sultry hourglass effect, compliments of the Stella McCartney runway two-piece.

Rosie Huntington-Whiteley went for the chop, hemming her tiger-print Dolce & Gabbana dress to mid-thigh for a youthful interpretation.

Rose Byrne skipped the high-drama jeweled collar worn with the Marc Jacobs runway original in favor of a bare neckline. A short navy slip accented the design's rich lace while keeping her underthings under wraps.

Sometimes the simplest switch-ups are the most dramatic. Clever Jaime King wore her Valentino gown back-to-front to create a day-friendly neckline with a dramatic rear-view.

5'2" Fergie kept her star-print Dolce & Gabbana design in proportion with her petite shape by upping the hemline to reveal her spectacular legs.

A Peter Pan-collar looked sweet on the Temperley London runway, but might have been a bit too youthful for the 20-year-old Emma Roberts. The actress eschewed the sheer blouse and wore the strapless dress solo for a sexier take on the '50s-inspired design.

Lucky Elizabeth Olsen has the ultimate stylists-her sisters, Mary-Kate and Ashley. The duo altered their deconstructed The Row tank dress by lightening up the top half in order to showcase the actress's toned arms and shoulders.

This sapphire lace Vionnet gown was shown over bare skin at the Fall 2011 presentation. Diane Kruger dared to leave the skirt seductively sheer, while opting for a more modest lined bodice.

This transformation didn't even require a tailor! Charlize Theron defined her tiny waist by belting her marabou Christian Dior minidress.

Peek-a-boo? Not for Anna Paquin. The True Blood star chose a lined version of Stella McCartney's polka-dot sheath and created a long, lean line as a result.

Perhaps inspired by the '40s-era hemlines highlighted in Mildred Pierce, Evan Rachel Wood showed off a little more leg by going with a mid-calf version of her cabernet Elie Saab gown, replacing the belt with a pair of brooches.

As a pal of Carolina Herrera, Renee Zellweger has the pull to request a clipped, cocktail-length version one of the designer's stunning layered gowns.

A single-sleeve sequined blouse from Emporio Armani was cut down to a tank-style top for Olivia Wilde. The result? A pared-down silhouette that played up her toned arms and ombre locks.