On December 23, 2022, Stray Kids uploaded the trailer video to announce that they would release their debut Japanese-language studio album on February 22, 2023.
[6] "The Sound" was written by 3Racha, an in-house production team of Stray Kids consisting of Bang Chan, Changbin and Han, and co-composed with American producers Zack Djurich and Kyle Reynolds.
[9] Akiko Watabe from Real Sound described that the song "shows an insatiable passion for music with the contrast between stillness and movement.
"[10] Stray Kids gave the debut performance of "The Sound" at Music Station on January 27, 2023.
[12] The group added the song to the setlist of the encore shows of Maniac World Tour in Saitama and Osaka, Japan.