What is Taylor’s biggest contribution to the pop music landscape? What makes her different from any other young hustler who ever wanted to rule the world when she grew up? She has taken the pop girl and made her the center of music—not a genre, not a style, not a fad. She reinvented pop in the fangirl’s image. In the 2000s, when she began, a young girl writing her own hit songs about her own feelings was rare. Now that’s just what pop is.