Boo Seung Kwan, born in Jeju-Do, South Korea, is a member the Korean boy group Seventeen (세븐틴) under Pledis Entertainment (플레디스 엔터테인먼트). He is the main vocalist in his group and part of the Vocal Unit as well as a member of the Seventeen's sub-unit BSS (부석순). He's also a university lecturer on the subject of K-pop history. He graduated from Seoul Broadcasting High School.

Seung Kwan was recruited by Pledis in 2012 and trained for three years and two months after a scout found a video of him singing during a children's song festival that was recorded by a teacher and posted online. He made his debut in May 2015 with Seventeen's first mini album "17 Carat." He debuted with BSS in March 2018 with their first single album "Just Do It," and in February 2024, he made his solo debut with the single "Dandelion."

He won the Rookie Award (Music and Talk) during the 2018 MBC Entertainment Awards for his performance on Unexpected Q and guesting on King of Masked Singer. That same year, he won the Best OST Singer with the soundtrack "Mother" from the show "Kind of Love."

(Source: MyDramaList) Edit Biography