한 Hongseok Hongseok (홍석) is a South Korean Male Artist. He started in group PENTAGON. Read All General Information International Stage Name : Hongseok Domestic Stage Name : Pronounce 홍석 Full Name : Yang Hongseok Pronounce Full Domestic Name : Pronounce 양홍석 Date of Birth : 1994-04-17 (age 32) Zodiac : Aries Country of Birth : South Korea Related Artists : PENTAGON - Vocal Original group : PENTAGON Images