[Picture] Krystal lifted up her shirt too high?

Well,i guess many of you were pretty impressed with f(x)'s comeback stage for Nu Abo in the past few days as the girls came back with a fiercer image this time.

Besides the girls' flawless dance steps,some fans with sharp eyes were so excited when Krystal lifted up her shirt during the performance.

Krystal lifted up her shirt too high and revealed the pink bra top when performing on Music Core 2 days ago.Sexy is the best word to describe here,check out the sexy scene here!