Its been revealed that Girls Generations Hyoyeon and ZE:As Kwanghee were good friends in the past.
Kwanghee guested on the July 7th broadcast of KBS 2TVs Invincible Youth 2, and both he and Hyoyeon revealed details about their friendship.
Hyoyeon stated, Before [his debut], Kwanghee and I hung out a couple of times and had meals together. But after Kwanghee debuted with ZE:A, he acted like he didnt know me.
Kwanghee explained, I saw Hyoyeon in the waiting room [backstage], but Girls Generation seemed scary. Thats why it was hard for me to approach her. I can chat with her now, but back then, [Girls' Generation] was too busy.
He then added, I was so disappointed that I went around insulting her, causing laughter.
Source: Newsen via Nate