Well, she is an outstanding beauty so noone will fault you! Her whole aura is just enticing But there is just something about Hyojung that totally knocks me out, my best theory yet is that her smile is similar to the greatest love of my life (so far) but either way hey cupid has shot my heart etc.
I searched the thread and first time I went crazy over OMG was in april, so happy with them following up with such a great single as Closer.
Edit: And yes, love the YooAtar! I should look for one for myself...