You must not follow Allkpop either? The Jo twins are pretty famous. One of the first things everyone started squealing about when their group was announced was that there were twins in it. And then people found out it was them and more spazzing commenced. I just took one look at the twins and their ages and said to myself "It's official; I'm going to hell because fml they're hot! x_X" I'm going to hell a million times over, it's not even funny. @_@ (except that it kinda is XD)
It just took me a minute to tell them apart but now I can point out which is Youngmin and which is Kwangmin with just a glance.