The structured facts describe Sowoon as the drummer of Double Decker, but the narrative material provided concerns an entirely different artist, Lee Seok-hoon, and contains no information about Sowoon or Double Decker beyond the bare biographical data points. Writing a substantive profile from this material would require inventing content that is not present in the source.
Based solely on what can be sourced: Sowoon (Korean stage name: 운; birth name Lee So-woon) is a Korean musician who serves as the drummer of Double Decker.
No further verified detail — debut date, discography, chart history, or other activity — is available in the provided material to develop beyond this.
