Red, Yellow or Green? No, we are not mentioning traffic lights here, we are talking about hair colours. A decade back, hair colour or colloquially known as hair dye was something your mom used to cover her greys, but come the age of metal genre and teen pop-stars black hair became boring. Getting that shocking blue or pink streaks and mixing it with that yellow boots and red nail paint- and Voila! You are a Diva. And then again why would you bother about your hair, because obviously that celebrity fooled you into believing that hair colour was an amazing skin care product with absolutely no side-effects. Duh!