Hollywood stormed Tokyo this weekend for a see-and-be-seen party at cutting-edge fashion boutique Opening Ceremony. The shop’s co-founders, Humberto Leon and Carol Lim, were on hand to greet their stylish guests, which included actress Kirsten Dunst, designer Alexander Wang and Greek shipping heir (and former flame of Paris Hilton) Stavros Niachros. Designing sisters Mary-Kate and Ashley Olsen were hard to miss at the event in their tulle animal ears — mouse for Ashley and rabbit for Mary-Kate — while they signed garments from their own label The Row. Even SNL star Andy Samberg was there, and joked to WWD, “I come to Tokyo once a week. I have a lot of stocks out here…I’m mainly just here on business.” Contented guests sipped sake from wooden cups while taking in the collections. The night ended on a fashionable high-note with revelers heading to an after-party at the Liquid Room, where The Strokes’ Julian Casablancas gave an exclusive preview of his first solo album.