Media outlets have reported that the music composer and singer in his 40's who was recently arrested for illegal drug use is Don Spike (Kim Min Soo, 45). 

Previously, police arrested 'A' at a hotel near Gangnam on suspicions of illegal drug use, after 'A's rapid drug test showed positive results. Earlier this month, while interrogating another individual on charges of illegal drug use, police acquired testimony that 'A' also abused the illegal drug methamphetamine several times. 

Meanwhile, a representative from Don Spike's side has yet to give a statement.