Kim Hyun Joong Biography, Kim Hyun Joong Family, Kim Hyun Joong House, Kim Hyun Joong Car, Kim Hyun Joong Net Worth, Kim Hyun Joong Girlfriend, Kim Hyun Joong Lifestyle. Kim Hyun Joong (SS501) Kim Hyun-joong is a South Korean Actor and Singer.He is known for being a member of the boy band SS501 and for his lead roles in the Korean dramas Boys Over Flowers, and Playful Kiss.