Jo Hye-ryung (Hangul: 조혜령; born January 20, 1994), also known by her stage name Kisum (Hangul: 키썸), is a South Korean rapper. In 2015, Kisum was part of the variety show Unpretty Rapstar, a spin-off of the program Show Me The Money. Unpretty Rapstar is a female rappers survival program. The show consists of a single-elimination competition through rap performances.