PARIS (AP) — Rarely does the demure Paris couture week see a standing ovation. Even rarer is the whooping and screaming that echoed around the gilded salons of the Hotel Salomon de Rothschild as Pierpaolo Piccioli took his bow following Valentino’s collection Wednesday evening. Mika, Valentino Garavani, Natalia Vodianova and Tracee Ellis Ross all got…