I think she's more in the 2 zone than she lets on. She's a wavy. I don't know much about her, but I remember reading her saying her hair is very frizzy, and that she "touches up" her curls with a spiral iron in the morning. Any photo of her on a red carpet or on an album cover is going to be styled hair. I found this article with a lot of pictures of her as a child and her early teens. http://www.pophistorydig.com/wp-cont...-age-13-50.jpg
I suspect that maybe the one at age 13 with the guitar is the real Taylor. It looks like the kind of fine, fluffy, wavy hair that can be flatter or wavier depending on the weather.