"No one else but me is me," sings Gesu no Kiwami Otome.'s vocalist Enon Kawatani on the group's second single, "Watashi Igai Watashi Janai No." Released in April, this funky pop song with its straightforward, existential catchphrase delivered in Kawatani's trademark falsetto voice has seemingly struck a chord with pop enthusiasts and a young generation of music fans all across Japan this year.