After Boohwal, Kim Jong-Seo was part of several rock bands, among others: Sinawe, Charisma (카리스마), and Little Sky (작은 하늘).

He has released 19 solo albums, and is also Seoul's Ambassador for Environment.

Through this song which was jointly produced with another former member of Buhwal, he calls for people to return the clean environment to our next generation.

He was also invited to perform in United Nations Anniversary on 23 June 2009 in New York City.

[1] Rethona (1992) 20th Anniversary Greatest Hits (2007) Father (아버지) (October 2008) Star's Story (별 이야기) (September 2009, single)