Kim Inseong (김인성) is a South Korean singer and actor. Was born on July 12, 1993, in Nowon-gu, Seoul, South Korea. He is a member of the boy group SF9 under FNC Entertainment. He’s a main vocalist and dancer.

In May 2016, he participated in “NEOZ Dance” in FNC Entertainment’s survival show “d.o.b (Dance or Band)”, competing against “NEOZ Band” (later known as HONEYST).

Inseong and the dance team made their debut with their first single album “Feeling Sensation” in October 5, 2016.

He and SF9 became FNC Entertainment’s first dance boy group.

Inseong has cast in some musicals: “Those Days” (2020), “Red Book” (2021), “Jack the Ripper” (2021). He also acted in web drama acted in a web drama “Click Your Heart” (2016), “Was It Love?” (2020), “Dok Go Bin is Updating” (2020) with HWIYOUNG.