AG was launched in 2000 by Yul Ku a pioneer in the denim industry.While our DNA is rooted in denim AGs evolution from an exclusively premium denim brand to a contemporary lifestyle brand began in 2008 when Samuel Ku son of Yul Ku took over as the brands Creative Director.AG was launched in 2000 by Yul Ku a pioneer in the denim industry.While our DNA is rooted in denim AGs evolution from an exclusively premium denim brand to a contemporary lifestyle brand began in 2008 when Samuel Ku son of Yul Ku took over as the brands Creative Director.