The snazzy sequins on the actress' skirt aren't the only thing that will help you shine at your next holiday party. While the majority of partygoers are sure to opt for classic cocktail dresses, you'll likely stand out as one of the only revelers in a classy column skirt. Did we mention the unexpected silhouette is also elongating and slimming? A waist-cincher like the stunning star's Lanvin Tiger Belt also helps create the illusion of an hourglass figure for extra va-va-voom.