Girl group f(x)'s Krystal during high school picture caught much attention. 

Recently in an online community forum, a picture was posted under 'Krystal receiving an award from the headmaster of her school.'

In the revealed picture, Krystal is on the stage of her school's field, receiving an award from her school's headmaster. She is wearing a school uniform and has long straight hair down, without any makeup on.

Internet users who saw this commented, "She was so pretty back then too," "She must have broken a lot of hearts when she was in school," and "Natural beauty."

Photo Credit: Online Community