Daesung

Kang Dae-sung (Hangul: 강대성; born April 26, 1989) is a South Korean singer, variety host and occasional actor, best known as being the main vocalist of popular Korean group Big Bang. Since his debut, he has released a solo album, several singles, performed in musicals, acted in a dramaWhat's Up, became a fixed member of reality-variety television series Family Outing and talk show Night After Night. He was well known for his witty persona on television.

source: http://en.wikipedia.org/wiki/Daesung