In recent years, K-Pop has emerged as a global cultural phenomenon that exerts considerable influence on contemporary beauty standards. Central to this influence is the meticulously constructed image of K-Pop idols, who are persistently represented as slim, fair-skinned, and visually “perfect.” Disseminated extensively through digital platforms, social media, and visual entertainment industries, these representations operate as a hegemonic bodily ideal. Employing a qualitative methodology informed by a postcolonial analytical lens, this study critically examines how such idealized bodies are interpreted and internalized by Indonesian adolescent girls, and how these processes shape their self-image and identity formation within broader Southeast Asian cultural dynamics. This study argues that the idealized female body in K-Pop culture functions as a hegemonic global aesthetic that is internalized by Indonesian adolescent girls, influencing their body perceptions and identity formation while marginalizing local beauty values through processes of cultural representation and mimicry.