1) Experimental rock group 
Guckkasten (국카스텐) is a South Korean independent rock band. Formed in 2003 under the name The C.O.M. (더 시오엠), the original lineup consisted of vocalist Ha Hyun-woo, guitarist Jeon Kyu-ho, drummer Lee Jung-gil, and bassist Kim Jin-eok. Due to conscription, The C.O.M. disbanded. In 2007, they regrouped with Kim Ki-bum as bassist under...