한 Oh Jangseok Oh Jangseok (오장석) is a South Korean Male Artist. He started in group Harmonize. Read All General Information International Stage Name : Oh Jangseok Domestic Stage Name : Pronounce 오장석 Full Name : Oh Jangseok Pronounce Full Domestic Name : Pronounce Casey Country of Birth : South Korea Related Artists : Harmonize - Vocal Original group : Harmonize Images No images yet