SNSD’s Jessica and f(x)’s Krystal have blossomed into beautiful young ladies, but it’s always fun to take a peek into their past and see what they looked like.

In this particular picture, Jessica is seen in a simple white top and dark pants with her hair parted in the middle. Meanwhile, Krystal, who is five years younger than Jessica, looks very much like a mischievous kid, with her hair pulled into pigtails, her mouth revealing a big smile, and colorful sweater. From the looks of it, they are in the middle of a photoshoot.

Ah, the days of innocence and youth.