Who: Natasha Poly What: Glamour to the Nines How-To: The supermodel took all the elements of a glamorous, old school red carpet look—big S-waves, winged liner, bold lip color and sparkling diamonds—and executed them to perfection at Cannes. Her orange-red lipstick felt summery and a little less expected. Editor's Pick: L'Oréal Paris Colour Riche Lipcolor in Volcanic, $9, lorealparisusa.com. - HarpersBAZAAR.com