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Nicole Scherzinger

And last but not least we have former Pussycat Doll Nicole Scherzinger, who killed it on the red carpet at a jam-packed "X Factor" press event in London in this adorable cocktail frock, Sethi Couture hoop earrings, Karine Sultan statement cuff, and Le Vian rings. Don't cha wish your girlfriend was hot like her?

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2 Hot 2 Handle

This week's best-dressed crew includes Lea Michele, Kate Beckinsale, and Jessica Biel. -- By Matt Whitfield, Yahoo! Staff