With a soaring range and a stunning voice, Japanese singer Eir Aoi has made a deep impression on the J-pop world in her short career. Her songs, whether backed by poignant strings or metal-influenced guitar riffs, are instant anthems—conveying epic romance or fast-paced action. Unsurprisingly, her singles have made her a star of the anime world, having been deployed for series like Kill la Kill and The Heroic Legend of Arslan.