loud mouth; The biggest, boldest makeup message of the season is hard to miss: Get ready for the High-Impact Lip.(lipstick)

Byline: Catherine Piercy

Oh, those ever-fickle fashion gods. Just when we'd stockpiled enough antique white camisoles and pastel chiffon blouses for a fleet of urban-chic fairies, along comes fall's bolder, brighter muse, sauntering down runways at Dior, Prada, and Marc Jacobs with enough colorful confidence and verve to make you rethink your entire wardrobe. For backstage makeup artists, the playful Pop Art tones-acid orange, cyclamen pink, ruby red-translated to a major makeup accessory: the High-Impact Lip.

"It's refreshing to see something so optimistic again in terms of color," makeup artist Gucci Westman says of the intensely saturated, electric lipstick shades. Yes, they require bravery-this isn't a failproof nude or a sheer-pink security blanket, after all-but the punchy new tones add so much color, personality, and light, who wouldn't want to take the chance? "One strong accent is so powerful," says makeup artist Stephane Marais, who used the simplicity of the classic Hollywood-red lip-set against a virtually bare face-to transform Sienna Miller from a plucky London It girl to a ...