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.
Soyou Kang Ji-hyun (Hangul: 강지현 ; born February 12, 1992), better known by her stage name Soyou (소유 ), is a South Korean singer. She is best known as a former member of the South Korean girl group Sistar under Starship Entertainment.