Seeing double?

I have always noticed it since Idol began but now I just can't take it anymore!

Am I seeing double? Sisters? Mother-daughter? Twins??

Everything about them is so similar! Even the "dimples" in their jawline is the same! I wouldn't be surprised if they turned out to be related to each other. The resemblance is even greater when you see them talk. I think it's the jawline, and the shape of the face. Even their personalities are the same. Same fierceness and tough-girlness.

So PK girls, did you ever notice the resemblance too?