This whole symmetrical celebrity face thing started when @greywithsloan posted this picture of Gigi Hadid and Taylor Swift.
Interesting + cool.

So, we decided to make some of our own and noticed that celebrities fall into four categories.
The first category are celebrities with perfectly symmetrical faces A.K.A. "The Plastics."

Alison Buck / Getty Images

Mike Windle / Getty Images

Getty Images

Getty Images

Getty Images
The second category are the "thick heads." These people have thick... heads.

Alberto E. Rodriguez / Getty Images

Jason Kempin / Getty Images

Getty Images

Jason Merritt / Getty Images

John Phillips / Getty Images

Grant Lamos IV / Getty Images
The third category is people's faces who are completely busted.

Jemal Countess / Getty Images

Frazer Harrison / Getty Images

Frazer Harrison / Getty Images

Alberto E. Rodriguez / Getty Images

Getty Images
And the fourth category is Iggy Azalea.

Jason Merritt / Getty Images
The end.