Japan's Kyary Pamyu Pamyu is a global ambassador for all things cute, but her videos have an unnerving side, too. The costumes and decor of her viral number “PONPONPON” honour the Technicolor mish-mash of Harajuku, but floating eyeballs and skulls push the kawaii into grotesque territory. She's explored such uncanniness ever since, and that tension helps her stand out from the rest of the pastel set.