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Victoria Beckham celebrated her 35th birthday with a ladies-only dinner Wednesday night.

The birthday girl (who actually turns 35 this Friday) arrived at Cecconi's in West Hollywood with BFFs Katie Holmes and Eva Longoria Parker around 9:30 p.m.

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Also there to celebrate the former Spice Girl: Kate Beckinsale, who arrived alone, followed by Jennifer Lopez.

Nicole Richie joined the group later.

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"There was a lot of laughing and giggling, and, at one point, I saw all of them making a toast and cheering with their classes," an onlooker tells

After a champagne-filled dinner, the waiter brought over a cake "and the ladies sang Happy Birthday to Victoria and she smiled and blew out her candle," the witness adds.

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They all left around 1 a.m.