한 Yeon Yeon (연) was a South Korean Male Artist. He started in group BTL. He retired in 2015. Read All General Information International Stage Name : Yeon Domestic Stage Name : Pronounce 연 Full Name : Oh Sang Hyuk Pronounce Full Domestic Name : Pronounce 오상혁 Date of Birth : 1992-01-13 (age 34) Zodiac : Capricorn Country of Birth : South Korea Related Artists : BTL - Vocal Artist retired : 2015 Original group : BTL (No longer a member) Images