Jennifer Aniston shines on the "The Bounty Hunter" U.K. premiere red carpet in a shimmery mini-dress from Valentino Fall 2009 Couture, teamed with gorgeous silver Jimmy Choo heels and a tuxedo jacket.

Style tip: Rock an ultra-sexy strapless mini and still look classy like Aniston -- just top with a sharp menswear-inspired blazer to smarten up your ensemble.

Call it Grecian-goddess chic. Kristen Bell's braided updo is oh-so-romantic and perfectly complements this season's gorgeous draped dresses.

Get her look: Spritz hair with texturizing spray and pull into a low ponytail. Divide ponytail into two sections: Braid one section; then twist the remaining section into a bun. Wrap the braid around the bun and bobby-pin in place.

Kristen Stewart sheds her usual cool laid-back look in favor of something cute and girly at the "The Runaways" L.A. premiere -- a flirty hot pink frock from Doo.Ri Spring 2010 paired with black peep-toes.

Style tip: Take a style lesson from Stewart and dare to experiment with new colors and styles that you usually consider out of your comfort zone. Not sure if you're stuck in a fashion rut? Take this quiz to find out if a style update is in order for you.

Sarah Jessica Parker looks tres chic at the Bravo Media's Upfront Party in a scallop-hemmed lace dress worn under a white blazer, both from Stella McCartney. The "Sex And The City" star accessorizes with multiple strands of necklaces.

Style tip: An otherwise too-fun-for-work party dress becomes office-ready when you team it with a smart, crisp jacket. Take a cue from Parker and layer on pretty necklaces to complete your stylish workwear combo.

Plenty of bounce, movement and shine -- what's not to love about Sarah Jessica Parker's loose, flowy strands? If you regularly use the curling iron, however, make sure you give your mane a deep conditioning treatment at least once a week to save it from styling damage.

Get her look: After blow-drying hair, make a center part then wrap sections around a 1 1/2-inch curling iron. Run fingers through hair to soften curls into loose waves.

Rachel McAdams is a vision of ethereal beauty at the Oscars in a pastel floaty gown from Elie Saab Spring 2010 Haute Couture.

Presenter Sarah Jessica Parker looks fabulously radiant in her pastel yellow silk gown from Chanel with silver rosette accents along the neckline.

Best Actress nominee Sandra Bullock shines on the Oscars red carpet in an elegant gold metallic and lace column gown from Marchesa and a matching clutch.

Miley Cyrus looks undeniably sweet in a champagne Jenny Packham bustier gown embellished with beads and sequins.

Best Actress nominee Carey Mulligan stands out with embellishments in a black bustier gown bejeweled with Swarovski crystal flowers, charms and trinkets, and accessories with a simple clutch and sandals, all from Prada, as well as statement earrings.