i totally agree, it's not like jaejoong owns this particular look..i have witnessed this look long before k-pop has even took storm globally (cough cough* j-pop/j-rock). I personally think that taemin and jaejoong may be categorized as one of the popular stereotypically looking pretty asian boytoy, the gender bending looking type. therefore its just natural to have them go with the same direction in terms of the look and the styling, because it simply suits them.. not everyone can pull this look off!!
as much as annoying these obsessed die hard fans of jaejoong are (don't get me wrong, i adore jaejoong), i can't entirely hate and blame them for knowing only a portion of asian pop culture. Some of them were too young or not even present when j-pop/j-rock was happening. They are just blinded by what they see today and what they know..
but please enough with accusing this copying that.. Can't we just celebrate the fact that taemin is having a comeback..peace~