I love the way her hair is styled, but how do you do it?

http://img.hottopic.com/is/image/HotTopic/255744_hi?wid=500&hei=751&fmt=jpeg&qlt=85,0&op_sharpen=1&resMode=bicub&op_usm=0.0,0.0,0,0&iccEmbed=0 this is the hair. who knows how to make it?