Earlier this week, actress Eliza Dushku, Pussycat Dolls creator Robin Antin and the Malibu community of Los Angeles gathered together to kick off Earth Day. Later in the week model Josie Maran attended a charity. What these three ladies have in common is their hair colour. Dye-down brown (as I like to call this style) is when a brunette's roots are darker than the length. It's a subtle way to let highlights grow out, and it's also another way to give hair depth. Personally, I think it's sloppy, as I'm one who prefers roots and lengths to match. However, plenty of women find this style edgy and hip. What are your thoughts on dye-down brown?