Ever since Psy’s irresistible hit “Gangnam Style” went from viral to platinum, all eyes have been on the East and the mesmerizing sounds of K-pop. If you head a little further east, though, you will reach the land of J-pop—Japan’s alluring addition to the pop music spectrum. Though the techno-pop girl trio Perfume started out as a traditional J-Pop group in 2000 with adorably synchronized dance ro