Stars Sparkle at Paris Haute Couture Week

Anne Hathaway, Katie Holmes and more celebs fête Chanel, Valentino, Armani and other haute designers' fall 2011 looks.

RED ALERT

Giambattista Valli's first haute couture show was a critical success – the designer played with a mixture of casual fashions and show-stopping gowns to create a unique aesthetic that blended sexy with wearable.