T-ara

T-ara (; Korean: 티아라) is a South Korean girl group formed in 2009, currently consisting of four members: Qri, Eunjung, Hyomin, and Jiyeon. T-ara's career is marked by hook-heavy dance-pop music, a result of their close partnership with composer Shinsadong Tiger. They have been referred to as the "Chameleons of K-pop" for their versatile concepts and experimentation with musical genres. The group achieved commercial success in several regions in Asia including South Korea and China, and their single "Roly-Poly" (2011) became one of the most downloaded domestic singles since 2010 and the most downloaded girl group single to date.