So fine your undies will undo themselves.
They say that there's a true and tested formula for a boyband to succeed. 1. Good looks, 2. Good dancing skills, 3. Good singing voice. Pick two. So you might ask, what are the two traits of One Direction then? Why don't you go ahead and find out for yourselves. I guarantee, you will get a blast figuring out which. My take, it's the hair.
Hit the jump for the One Direction Infection.