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.
Yoon Bo-ra Yoon Bo-ra (born December 30, 1989), better known by the mononym Bora, is a South Korean singer and actress. She is a former member of the South Korean girl group Sistar and its sub-group Sistar19.