Tie dye hair is when people have some sort of dip dye in their hair, which is usually brown roots with blonde ends. However recently its seems to be other colours as well, such as pink and blue for example. This style of hair has been around for a while now, but its still very much in fashion.
I absolutely adore this kind of hair dye and I really really want to dye my roots a light brown so I get the dip dye effect, from brown to blonde! Hopefully I will do it once I get some money :)