Celebrity hair styles definitely give us all an idea of what we can do with our own hair, but it's just a starting place. What makes a great hair style is the person wearing it. You can have long extensions a-la-Jessica-Simpson, but if you don't have the attitude and personality to pull it off then you might want to go for the medium length hair styles that she has worn, or even the shorter shoulder length dos that we've seen on her over the last year or two. Celebrities have the knowledge and the guidance to always have great hair, as well as the resources, so it is no wonder that we all look to them for styling ideas.