When it comes to Fashion Week, even the night before the night before is a big deal. So, while cities around the globe will be bustling tonight for Fashion's Night Out (have you made your plans yet?), a stylish set of celebs kicked off the festivities early with a few events of their own last night. From the Style Awards — where Katie Holmes made an onstage appearance as a presenter — to the Shops at Target launch and Christian Siriano's NYC boutique opening, our favorites turned out a mix of cocktail-chic and edgier, sexier confections (we're looking at you, Nicole Richie) to ring in a very fashionable week ahead. From a leather-clad Brooklyn Decker to a Proenza-clad Kate Bosworth, it's all inside. Click on to see which celebs stepped out to get the Fashion Week party started.