Some deem them outlandish, while others have devoted websites to the current popular trend known as "emo" or "scene" hair. Reminiscent of 80's fashion, the most typical emo hair style is an androgynous lopsided cut with highlights to create an asymmetrical effect.

Though these hairstyles are considered trends of teenage culture, they can be known to be very elegant looks such as on former Spice Girl Victoria Beckham and popstar Rihanna. What is so unnatural about these two beautiful ladies?  Science says symmetry.

Studies have been done since the early 90's proving that symmetry is what makes a person attractive, and now Professor Marcus du Sautoy of Oxford University is speaking out about the particular hairstyle, which began nearly three decades ago.

He plans to argue his case at the upcoming Cheltenham Science Festival, based on the facts that in nature, diseased mothers often bear asymmetrical young, making their health an issue when it comes to choosing the right mate.

Is beauty really skin deep or do these facts hold truth? Do humans still reserve primordial instincts when it comes to who they love? Or can we really judge a book by its cover?

This post was contributed by cas