Jung Sunghak 정성학 is Big Star's lead vocal.
Sunghak was born on Saturday, January 16, 1993. He's a Capricorn and he was born in the Chinese Year of the Rooster.
He's 178 cm or 5'10" tall. His blood type is B.
Sunghak was born in Gwangju.
He's good at taekwondo and playing the piano. He's also good at jumping. He's talkative and outgoing. Sunghak is the best cook in Big Star.
He's a fan of Jay Sean.