What ideals of masculinity-femininity are asserted-how these ideals connect with-challenge existing perceptions on gender roles?

Discuss gender in relation to K-pop’s idol representations. What ideals of masculinity or femininity are asserted and how these ideals connect with or challenge existing perceptions on gender roles?
A strong topic and a clear argument with ample evidence are the two most important criteria.
Papers should include close readings of audiovisual or discursive contents or interviews in case that you are employing a qualitative method.