So, everyone thinks that it's all about the red lip.
But they're WRONG.
Because purple has got it goin' on.
And here are some reasons backing this highly scientific data:
Beyoncé likes it.
And so does her sister, Solange.
Katy Perry rocks it.
And when she's just being cool.
And Lorde loves it.
Whether it's royal or submerged under water.