Jongseob (종섭), born Kim Jong Seob (김종섭), is the maknae and rapper of the South Korean boy group P1Harmony.
From December 2016 to April 2017, Jongseob participated in the competition show K-pop Star 6 and won as part of the duo, Boyfriend, with Park Hyun Jin. Following the show's conclusion, the duo signed a trainee contract with YG Entertainment. The following year, he join YG Treasure Box in Group C. However, he was eliminated in Episode 9.
He debuted as a member of P1Harmony on October 28, 2020 with their first mini-album Disharmony : Stand Out.