Marc Malkin

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SISTER ACT: Kim and Khloe Kardashian, joining Reggie Bush for a family birthday party at Il Tiramisu Ristorante in Sherman Oaks, Calif.

HOUSE MATES: Tori Spelling and hubby Dean McDermott, toasting their pal, casting director Scout Masterson, at the Hollywood premiere of his new flick, The Last House on the Left.

MILLER TIME: Katy Perry, drinking a Miller Lite while chatting with Lady Gaga at gay bar Here during party promoter impresario Tom Whitman's weekly Sunday soiree, Size. The next day, Ms. Perry was spotted in Las Vegas having cheetah-print Minx nails applied at the AMP Salon in The Palms in Las Vegas.

Question: Which star of a hit TV series exclaimed, "I'm just a little girl from Idaho. I never thought I'd have a drink named after me" when she was served a cocktail named in honor of her television persona at Hollywood hot spot Bardot?

Answer: Christina Hendricks, enjoying a Joan Holloway, a drink inspired by her character on Mad Men.

TRACK & FIELD: Chris Noth and a pal, going for a Saturday run at Runyon Canyon in Los Angeles.

ROCKER RETREAT: Ozzy Osbourne, checking into the We Care Health Center & Retreat in Desert Hot Springs, Calif.

CLOSE ENCOUNTER: Steven Spielberg, having dinner at Katsuya in Brentwood, Calif., the night after Tom Hanks did the same.

PUPPY LOVE: Melanie Griffith, stopping at the Grove mall in Los Angeles to check out Disney's doggy casting call held in conjunction with the DVD releases of Beverly Hills Chihuahua and Bolt.

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FISHY BUSINESS: Kelly Clarkson, leaving a "huge tip" after hosting a party of 12 for dinner at Koi in New York City.

STRIKE A POSE: Make Me a Supermodel hosts Tyson Beckford and Aussie model Nicole Trunfio, celebrating at the show's second season premiere at Tenjune in NYC.

FACEOFF: Dancing With the Stars pro Lacey Schwimmer, getting the Sircuit Moca Loca facial at the Body Bar Spa in L.A.'s Silver Lake neighborhood.

QUICK STOP: Adrian Grenier, popping into Birds restaurant in Hollywood to say hello to some friends.

LEAN TIMES: Sharon Stone, looking "very slim and taut" at Bazaar in the SLS Hotel in Beverly Hills.

COMING UP

BEANTOWN BASH: Dollhouse star Eliza Dushku hits Boston's Alibi in the Liberty Hotel on March 16 for a party marking her cover of Boston Common magazine. The night also benefits Camp Hale.

BELLE OF THE BALL: Bonnie Hunt will be honored with the True Grit Humanitarian Award at the John Wayne Cancer Institute Auxiliary's 24th annual Odyssey Ball on April 18 at the Beverly Hilton hotel in Beverly Hills.

—Additional reporting by Dahvi Shira, Carrie Borzillo-Vrenna, Natalie Abrams and Whitney English