Binary Code (EP)

Content sourced from Wikipedia, licensed under CC BY-SA 3.0.

Binary Code is the fifth extended play by South Korean boy group Oneus. It was released on May 11, 2021, by RBW and distributed by Kakao Entertainment. The EP includes the lead single “Black Mirror” (a rock version of their debut song “Valkyrie”) and three new tracks. Group member Ravn co-wrote “Black Mirror.”

Binary Code performed well in Korea, peaking at No. 2 on the weekly Gaon Album Chart and No. 4 on the monthly chart, with 103,240 copies sold by the end of June 2021. In January 2025, the album re-entered the weekly Circle Album Chart (the Gaon chart’s successor) at No. 20, with 5,001 copies sold that week.

“Black Mirror” was listed by Dazed as one of the best K-pop tracks of 2021, praised for its blend of funk bass, strings, and digital production. NME’s Puah Ziwei noted the music video seems inspired by Michael Jackson, with references to songs like “Bad” and “Man in the Mirror.”