HOTEL CALIFORNIA: Justin Timberlake and Jessica Biel, enjoying a postworkout lunch at the Avalon Beverly Hills. J.T. chose the chicken paillard while Ms. Biel went for a chicken salad.
FAMILY MATTER: Nick Jonas and his younger brother Frankie, watching the Yankees/White Sox game in the Skybox at ESPN Zone NYC.
PLAYING GAMES: Twilight hunkster Kellan Lutz, hitting the Nintendo Showroom in L.A. to check out Wii Sports Resort and Wii Fit.
Speaking of Lutz, keep reading to find out where we caught one of his new bloodsucking costars hanging out in Vancouver...
VAMPIRE DIARIES: Daniel Cudmore, who plays Volturi guard Felix in New Moon and Eclipse, making a late Saturday night stop at Opus Bar in Vancouver, and then returning the following evening with a small group of friends.
CITY SLICKERS: Hayden Christensen and Rachel Bilson, checking into a suite at the W Union Square in NYC.
NEWLYWED GAME: Just-married Ali Larter and Hayes MacArthur, having dinner and lots of wine at Chateau Marmont in West Hollywood at the same time Jared Leto was on the patio having drinks with some friends.
PIGSKIN PARTY: Molly Sims, hosting a Fantasy Football Superdraft bash at Pure nightclub in Las Vegas.
ALL SMILES: Michelle Trachtenberg, leaving the Shopbop.com dinner at the Smile in NYC.
SINGLE LADY: Joe Jonas' ex-girlfriend Camilla Belle, partying with pals at Guys & Dolls nightclub in West Hollywood.
GIRLS ONLY: Lauren Conrad, dining with her mom and five friends at Sushi Samba in Las Vegas.
WINE AND DINE: Tori Spelling, sipping away at the Malibu Wine Classic benefiting ChildHelp.
COMING UP
LEADING LADIES: Christina Aguilera, Anne Hathaway, Christina Applegate, January Jones, Maria Bello, Sigourney Weaver, Laura Ziskin and Sherry Lansing will be honored Sept. 24 at Variety's first annual Power of Women luncheon in Beverly Hills.
—Reporting by Dahvi Shira, Ashley Fultz and Aly Weisman
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For more of your favorite celebs out and about, check out our Party Pics: Hollywood photo gallery.