[Picture] Luna and HyoSung pose together at "MTV The Show"!

f(x)'s Luna and Secret's Hyosung snapped a photo together!

The girls posed together at the backstage of "MTV The Show".

Many fans who have seen this photos said that both of them are like siblings,having blonde hair and they are both chubby.

What do you think concerning fans' comments?

Credits to Iheartfx for the photo!