The song "Gashina" was recorded by a South Korea singer that was a member of what group in 2007?
Sunmi Lee Sun-mi (born May 2, 1992), referred to as Sunmi, is a South Korean singer. She debuted in 2007 as a member of South Korean girl group Wonder Girls and left from the group in January 2010 to pursue her academic career.
Koo Jun-hoe Koo Jun-hoe (Hangul: 구준회, born March 31, 1997) is a South Korean singer. He is a member of the South Korean boy group iKON, signed under YG Entertainment.