Girls' Generation's Yoona is playing it faithful with Valentino. The K-pop star attended the opening of a pop-up store for the Italian brand at the Hyundai Seoul in South Korea on Tuesday.

For the rest of us, January feels slow, oh-so cold, and devoid of joy. Just me? For celebs, January means wintering in Aspen, evenings of Parisian elegance, and outfits that cost more than ...