We're guessing the official afterparty dress code had a strict no-underwear addendum. Why else would so many stars (ahem, Heidi Klum and Rita Ora) forgo their underpinnings and opt for sheer dresses? The latest to try the look is It model Gigi Hadid, who wore a black Atelier Versace dress with cutout details from the Spring 2015 collection. But whether this nearly naked microtrend has legs (and hips) is still to be determined. Tell us: should more red carpets have a panty-free policy?