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.
Lizzy (singer) Park Soo-young (born July 31, 1992), better known by her stage name Lizzy, is a South Korean singer and actress. She is a member of the girl group After School and its sub-unit Orange Caramel. In March 2010, she debuted in After School with the release of their third single, "Bang!", and debuted as a solo singer in January 2015 with "Not an Easy Girl". She has acted in various films and television shows, including "All My Love" (2011), "Love Forecast" (2015) and "Angry Mom" (2015).