all at once

Artist

all at once is a Japanese male twin-vocal duo composed of ITSUKI from Hokkaido and NARITO from Miyazaki. The two met as fellow graduates of a Tokyo music school. With ITSUKI's powerful falsetto and NARITO's pure, silky tone, they made their major debut in 2020 with the Seiji Kameda-produced single "12cm." They have drawn particular attention in the anime-song scene, notably handling an opening and ending theme for "Case Closed" (Detective Conan) simultaneously with their transparent, polished harmonies.