Nicole Richie as Jennifer Lopez Nicole Richie stuck to her guns this Halloween and avoided wearing a \"slutty\" costume at Kate Hudson\'s bash in the Pacific Palisades Saturday night. Still, Richie managed to impersonate one of Hollywood\'s sexiest icons: Jennifer Lopez. For her funny but prim J Lo getup, Richie, 30, donned the 42-year-old diva\'s iconic pink sweatsuit, oversized gold aviators, huge hoop earrings, accessorized with a Louis Vuitton bag; she wore her hair up in a bun and even made sure her skin matched Lopez\'s gorgeous golden glow. The designer, Hollywood kid and mother of two pleaded on her Facebook page: \"Girls, can we all pledge that we will not dress slutty for this Halloween? The jig is up!