If the word ‘supergroup’ brings to mind a bunch of grizzled old rock stars stars noodling around with guitars on interminable solos, then FAMM’IN are the J-Pop breeze to blow them towards music’s retirement village. Made up of power-pop four-piece FAKY, the latex wearing cult electro duo FEMM, and rising indie singer/songwriter Yup’in, the seven girls, who are all signed under Japan’s giant Avex Group, came together last year for the six-and-a-half minute opus “Circle” from their self-titled EP. As a hypnotic, swirling mix of EDM and vocals that chanted, ebbed, and soared while traditional Japanese classical music known as ‘gagaku’ swept through it in waves, “Circle” was as much an experiment as it was a divine blast of unconventional pop, much along the lines of FKA twigs at her most exploratory.