Hur Hyun-jun (허현준; born March 9, 2000), formerly known as Hwall (활), is a South Korean singer-songwriter, dancer and actor under Blossom Entertainment. He is a former member of the boy group THE BOYZ. Hur Hyun-jun (허현준; born March 9, 2000), formerly known as Hwall (활), is a South Korean singer-songwriter, dancer and actor under Blossom Entertainment. He is a former member of the boy group THE BOYZ.