Ombre hair is a trend i have been following closely (albeit by subconsciously) ever since i saw the rather annoying 90210's Annie with her new do. I think its a style people seem to either love or hate. Personally, I think it works really well with brown roots gradually fading to blonde or dark brown fading to light (ie. Alexa). It has ofcourse been paired in with the pastel hair colur trend, which i think also works well but is just more daring. The thing is though would people get it or just think you couldnt be bothered to die your roots? Advocates of visable roots seem to be Lily Aldridge, Dree Hemingway, Alexa Chung, Erin Wasson, Isabel Lucas and Alice Dellal but to be honest it all seems very Olsen inspired.