UNDER SEONGSU BRIDGE is a South Korean hip-hop crew formed in 2019. The name is a reference to the Seongsu bridge in Seoul over the river Han, which connects the upmarket Gangnam district to Seongdong. It was also subject to the Seongsu Bridge disaster, when on October 21st, 1994, it collapsed onto the Han. This was part of a series of disasters that occurred during the modernization of South Korea, and a topic that has been addressed in certain song titles by the crew, such as “Seongsu Before The Development.”

Members of the crew include rappers 365LIT, BIRTHDAYCAKEiii, Jupiter, Rayshin, Toigo and Web. Most of the members are also producers and mix and master their own songs as well. Their self-titled first album was released on January 25th, 2021.