Have you ever heard of Ombré hair? It basically consists of having lighter hair colour on the both part of your hair.
And lately I’ve been thinking about doing it.... huummmm
Here are some pictures of celebrities with Ombré hair, and also a video that explains one of the ways to do it. On this video they dye the roots of the hair in a darker colour, the other way that you can do it (I could find a good video) is to simply bleach the ends of your hair, like half way down – depending on the length of your hair. But the main thing is to do it in a irregular way :)