This work aims to study actual cases of idol girl groups’ fashion styling by examining fashion image types, make-up designs, and hair styles of ‘BLACKPINK’ shown in music video image screen of ‘Kill this Love’. As a result of studying make-ups and fashion images in ‘Kill this Love’, the musical feature of BLACKPINK is ‘electronic’ but costumes in music video show a variety of styles such as ‘retro, mannish, military, punk, and ethnic’ styles avoiding typical hip-hop style. Their make-ups also show various make-up design features using the elements of ‘color, shape, and texture. In particular, individual and strong images are delivered effectively through bold variations (thickness, length, and direction of eyeliner, and slanted eyes’ shape) avoiding typicality of gel & liquid eyeliners. Also, by performing the changes of false eyelashes and hair colors actively, kitschy elements are expressed. In addition, it is indicated that rather than conceptualization of uniformed fashion styling for all members in one music, each member has own and differentiated fashion style, make-up, and hair style according to each voice color and each role in their music.