There's cocaine at Colette! Through March 1 — the end of Paris Fashion Week — the Paris boutique's first-floor gallery will display Swiss artist Comenius Roethlisberger's exhibition of luxury-brand logos like Chanel, Versace, and Yves Saint Laurent written in a mixture of cocaine and powdered sugar, adorably entitled "Dearest Constellation, Sweetest Invitation" (he's talking to you, Kate). Certainly some of you naughty ones find this combination of elements quite alluring, non? You can look, but no touching — the logos are suspended in clear polyester-resin boxes. But we're sure some fallen fashionista turned Parisian street junkie will find a way to break in and get a designer fix.