2ne1, sandara park, bom, gong minzy, iatb, cl, dance, perfect, park bom, dara park, dara, kpop, sk, naega jeil jal naga, music video, perfection, mv, south korea, minzy, south-korea, i am the best, chaelin, yg, gong minji, sandara, minji, chaerin, lee chaerin, mingkki, cl is the best