NOIR was a South Korean boy group formed in 2018 by LUK Factory. The group consisted of eight members: Seunghoon, Yeonkuk, Siheon, Junyong, Yunsung, Siha, Yunsung, and Minhyuk. NOIR was known for their versatile music, blending elements of pop, rock, EDM, and hip-hop.

Their debut album Twenty's Noir was released in April 2018 and featured the title track “Gangsta.” Since then, they achieved success with hits like “Doom Doom” and “Lucifer.” The group was distinguished by their powerful stage presence, impressive choreography, and charismatic performances.

The group went inactive in May 2022, and six of the eight members sued LUK Factory, claiming that contractual agreements had not been honored. Although LUK Factory countersued, the members won both cases and the group officially disbanded in 2024.