Kang Dong-chul, also known by his stage name Brave Brothers, is a South Korean rapper, record producer and songwriter for 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 After School, Sistar, 4Minute, T-ara, Son Dam Bi, Big Bang, Brown Eyed Girls, AOA, Hello Venus, RANIA and U-KISS. In 2009, he made his music debut with Attitude and later released Passionate on December 8. His label manages acts such as Electroboyz, BIGSTAR, and DKB. Kang was a judge panelist on JTBC's Made In U program in 2011.