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CITY SLICKER: Audrina Patridge, wearing a Boone's Farm vintage T-shirt while picking up magazines at a New York City newsstand.

DOLLS' HOUSE: Natasha Bedingfield, hanging out with the boys of One Republic during the Pussycat Dolls performance at the Kohl's-hosted Fashion Rocks preparty at NYC's Mansion club.

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YOU'VE GOT TAIL: Charlie and Brooke Sheen, along with Leonardo DiCaprio, Eva Longoria Parker, Michelle Rodriguez and Paris and Nicky Hilton, enjoying dinner at the opening of Yellowtail Sushi Restaurant & Bar in Las Vegas.

CINEMA PARADISO: Keanu Reeves and Winona Ryder, along with a group of friends, seeing a movie at the ArcLight Hollywood theaters.

OLD FRIENDS: Mary-Kate Olsen and John Stamos, having lunch at the Chateau Marmont hotel in L.A.

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POLITICAL BODY: Eva Longoria Parker, stopping by the MySpace Cafe at the Democratic National Convention. (See who else was at the DNC here.)

LONG NIGHT: Justin Long, having dinner at Yellowtail Sushi Restaurant & Bar in Las Vegas before hitting the CatHouse nightclub.

GROUP SPECIAL: Leonardo DiCaprio, along with Rihanna and new Dancing With the Stars contestants Lance Bass, Rocco DiSpirito and Susan Lucci, hitting L.A. hot spot Coco de Ville.

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MODERN WOMAN: Debra Messing, carrying a Modern Leo doctor bag by Donna Karan while running errands in Beverly Hills, including getting her hair done for her birthday party later that night.

ON THE RADIO: Ryan Phillippe and girlfriend Abbie Cornish hitting the Radiohead concert at the Hollywood Bowl, as did Christina Aguilera, Josh Brolin and Diane Lane.

DATE NIGHT: Gwyneth Paltrow and Chris Martin, having dinner at the Palm in East Hampton, New York.

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MCSWEATY: Patrick Dempsey, out and about after a workout at the Easton gym in Los Angeles.

BOTTLED UP: Gossip Girl star Ed Westwick, checking out the new Coca-Cola aluminum bottles at a party at the Soho Grand Hotel in NYC.

LET'S MAKE A MEAL: Jessica Alba, with baby daughter Honor Marie, having lunch at the Kokomo Cafe in L.A.

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COLLEGE BOYS: Chace Crawford and Penn Badgley, shooting scenes for Gossip Girl at Columbia University in New York City.

MODEL MOM: Christie Brinkley and her three kids, having dinner at Tutto Il Giorno in Sag Harbor, New York.

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FOUR-PAWS CLUB: Debra Messing, playing with a dog on the set of her new television series, The Starter Wife.

ROBIN'S HOOD: Britney Spears, Halle Berry, Sean "Diddy" Combs and Raven-Symoné, checking out Robin Thicke's concert at the House of Blues on L.A.'s Sunset Strip.

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GIRL'S BEST FRIEND: Liv Tyler, walking her dog near her apartment in New York City's West Village.

LIGHTEN UP: Lindsay Lohan, getting her highlights touched up at the Neil George Salon in Beverly Hills.

THIRD WHEEL: Ashley Olsen, sitting down for a late lunch with boyfriend Justin Bartha and a friend at Serafina in New York City.

CHILDREN'S HOUR: Sean "Diddy" Combs and Zac Posen, celebrating the Sean John presentation with their mothers at the Empire Hotel rooftop in New York City.

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FAMILY TIME: Kirsten Dunst, spending an afternoon having lunch and shopping with her parents in Venice, Calif.

BIRTHDAY GIRL: Ryan Phillippe and girlfriend Abbie Cornish, hanging in a private poolside cabana at Tao Beach in Las Vegas while spending a long weekend at the Palazzo Hotel in Sin City for Cornish's birthday.

SPEED DEMON: Zac Efron, driving over 100 miles per hour in an Audi R8 at the Infineon Raceway in Sonoma, Calif.

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Fame Pictures

FRIENDS FOREVER: Nicole Richie, helping Samantha Ronson celebrate her birthday over dinner with a gaggle of pals at Matsuhisa in West Hollywood.

SQUEEZE IN: Kate Hudson and her brother, Oliver, having dinner with 12 others at Marix Tex Mex Café in West Hollywood.

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