Kang Dong-chul (Hangul: 강동철, born June 17, 1979), also known by stage name Brave Brothers, is a South Korean rapper, record producer and songwriter of Brave Entertainment. He was a producer and composer for YG Entertainment from 2004 to 2008. In 2008, he started his own record label called Brave Entertainment. He has produced hit songs for Sistar, 4minute, T-ara, Son Dam Bi, Big Bang, Brown Eyed Girls, After School, AOA, Hello Venus and U-KISS. In 2009, he made his music debut with Attitude and later released Passionate on December 8. He has three groups under his record label: Brave Girls, Electroboyz and BIGSTAR. Kang is currently appearing on JTBC‘s Made In U program as a panel judge.