Fall '10: Justin and Jessica's Showmance!

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JUSTIN AND JESSICA

After the success of own William Rast show the singer – in a gray tailored suit mixed with a black beanie and scarf – takes a breather by enjoying the Marcella Lindeberg show with girlfriend in the front row.

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KATE BOSWORTH

This seamlessly matches her crimson lips to her pointy heels in a hip-hugging camel-colored dress from the brand at the Calvin Klein Collection afterparty.

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ASHLEY OLSEN

supports her longtime friend Tommy Hilfiger at his fashion show while looking simple and chic in the designer s heather gray sweater and beige trousers matched with some fierce black Manolo Blahnik pumps.

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KELLAN LUTZ

Before entering the Calvin Klein Collection afterparty, the Twilight – looking dapper in a black blazer – proves that with his clothes on or off, he sizzles in front of the cameras.

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NATALIE PORTMAN

pulls off old Hollywood glamour flawlessly in her white dress and gold pumps at the “Quicktake Rodarte” exhibition at the Cooper Hewitt National Design Museum.

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ED WESTWICK

Is that or Chuck Bass? The dashing actor – wearing a pink shirt with a sports coat – proves that his always impeccably-dressed character on Gossip Girl isn t just a television act.

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NAOMI WATTS

This shows off her toned legs in a gray dress with matching clutch and bangle at the Calvin Klein Collection afterparty.

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BROOKE SHIELDS

The holds her own while modeling a chic single-shouldered sequined Naeem Khan dress with a power patent-leather belt in the tents at Bryant Park.

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ANNALYNNE MCCORD

Guess who’s pretty in peach? The young 90210 star looks soft and demure while posing for the cameras in her draped pastel dress before entering the Calvin Klein Collection afterparty.

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HAYDEN PANETTIERE

The takes a less-is-more approach, wearing a black slinky frock with pink pumps at Tommy Hilfiger s fashion show.

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KERRY WASHINGTON

Shake, rattle and roll! Before entering the Calvin Klein Collection star-studded afterparty, the actress stops for the paparazzi looking swanky in her metallic gold dress and snake-skin clutch.

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AMBER ROSE

This fashion rebel tones it down with a slick, single-shouldered black dress at the Laura Smalls presentation at The Plaza Hotel.

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TOMMY AND ROSARIO

Cheers to that! Hilfiger and Dawson merrily share a glass of champagne backstage at the designer s show, which was the last-ever presentation in the tents at Bryant Park.

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KIRSTEN DUNST

The ever-bubbly , who attended the Rodarte show earlier in the week, turns up at an opening cocktail party for the design house’s new museum exhibit wearing a pleated black dress.