In 2012, Sunggyu debuted as solo singer with his EP, “Another Me”.
Sunggyu acted in the drama "Pure Love"
His ideal type is a girl who can be sexy.
Sunggyu enjoys sleeping to the point where he can sleep the whole day away.
Sunggyu’s ultimate goal is to be a musician until he dies.
On rainy days before they debuted, Hoya and Sunggyu used to eat their lunch under the small jungle gym in the playground, and one time, a kid walked past, pointed at them and called them “beggars”.
Sunggyu wanted to be either a philosophy or ethics teacher when he was younger.
When they were still trainees Sunggyu, Sungjong, and Hoya used to live in the CEO's house.
Sunggyu’s favourite song to sing at karaoke is Taeyang’s ‘I Need A Girl’.
Sunggyu is intelligent. He placed second during middle school and he even played on the first season of the show "The Genius"