Happy birthday to Supernova's Yoonhak Unknown 2:00:00 PM happy birthday, supernova, yoonhak Comments Stage name: Yoonhak (윤학) Full Name: Jung Yoon Hak (상윤학) Born: December 2, 1984 Height: 180cm (5 Feet 10 Inches) Weight: 64kg (141 Pounds) Position: Leader, Vocalist Email Post ← Newer Posts Older Posts → Home