Mardi Gras has passed, but Tinseltown's fashionable set is keeping the party alive, New Orleans style, with long, beaded necklaces. Adding quirkiness to casual and elegant wear, bright gumball- and jelly-bean-shaped baubles frame the face with eye-popping punch. To channel some Southern charm, toss on glass, wooden or crocheted beads atop a cami or sweater (collared shirts compete for attention). Bethany Joy Lenz is strung out on vintage pea-size nuggets, while Margherita Missoni fêtes with a touch more flash, stacking a trio of multicolored strands. But Kyra Sedgwick really burns the midnight oil, accenting her monochromatic girl-gone-glam garb with Tahitian black pearls—hung super low in true Fat Tuesday fashion. —Anna Pezik