Wanna One's Kim Jae-hwan, "Smile and Heart Kung."

Singer Kim Jae-hwan from Wanna One is leaving for London on the afternoon of the 18th through Incheon International Airport for overseas schedule.

About Kim Jae-hwan

Kim Jae-hwan, better known by the monomyn Jaehwan, is a South Korean singer-songwriter, known for finishing fourth in Produce 101. He is a former member and main vocalist of South Korean boy group Wanna One.  Wikipedia