South Korean singer and dancer who was the main rapper in the Korean boy band Infinite.
He had his career debut as part of Infinite-H in January 2013 with the song Special Girl.
He is also known by the name Dong Woo.
His family comes from Gyeonggi, South Korea. He has a sister named Jang Kkotip.
He is a South Korean singer like Kim Hyun-Joong of the boy band SS501.