She was born in Japan and raised in the UK, but the pop singer (and sometime model) Rina Sawayama may be, first and foremost, an iconoclast. She has a penchant for the neglected and less acclaimed sounds of the ’00s, whether it’s Britney-era pop or nu-metal in the vein of Korn. But her sonic instincts are unimpeachable and unironic: She imbues all her work with genuinely affecting emotion. Her 2017 EP Rina’s promising pop nuggets set the stage for her debut full-length, 2020’s remarkable Sawayama. Delights include “STFU!,” which eviscerates racist execs in the music industry, and the painful, honest “Bad Friend.”