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Paris Hilton and the mom of her ex-best friend (that would be Kim Kardashian) linked up at Nancy Davis' "Race to Erase MS" gala at the Beverly Hilton on Friday night (May 5).

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In the context of the smiling crowd -- including Hilton's boyfriend-of-the-minute Chris Zylka (left) and Tommy Hilfiger's wife Dee Ocleppo (right) -- mama Jenner's stone face here registers in the low end of the "fun meter."

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By comparison: All smiles here with boyfriend Corey Gamble and Hilfiger.

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The mothers of the twin media monsters of our time link up: Kris Jenner grabs ahold of Paris' mom, Kathy Hilton.I'm not sure whether we should put them in the Smithsonian or scream "It's all your fault!"
Luriking: That appears to be Elliot Mintz (far right), Paris formerly ubiquitous publicist/fixer from her mid 2000's peak, still on the scene.

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When are Lisa Rinna's daughters getting a reality show? (They are actually Hamlins: Amelia Gray Hamlin and Delilah Belle Hamlin)
Their mother Lisa (right) has already done all of them. She should know who to call.
The Rinna-Hamlin clan surround Davis family matriarch Barbara Davis.

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Host Nancy Davis' (left) sturdy coat tails across the glamour industries include Lance Bass...

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Longtime supporter and multiple sclerosis advocate Tommy Hilfiger...

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Carmen Electra (still commanding all lenses on the carpet) and...

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The musicians: David Foster, Randy Jackson, Siedah Garrett, Quincy Jones and Michael Fish Herring.

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Chicago headlined the event. The brassy rockers follow in the footsteps of Elton John, KISS and Heart, who have all performed at this private bash in past years.

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Light rock is a "Hard Habit to Break."

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Lancy Bass, honoree of the night Jamie-Lynn Sigler and Kathy Griffin backstage at the Beverly Hilton as guests mingled at the Svedka vodka cocktail hour.

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Actress-turned-chef Haylie Duff and Jessica Szohr.

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Lea Thompson and Deborah Ann Woll

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Max Greenfield and Tess Sanchez

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Former "Real Housewife of Beverly Hills" Camille Grammer and Lisa Rinna helped raise funds for the Center Without Walls program, which provides treatment and resources aimed at ultimately finding a cure for multiple sclerosis.

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Jenner and Nancy Davis. The celebrity-filled gala has raised over $46 million to date for the Race to Erase MS.