Fairy tales, princes, damsels in distress — yep, it's a Taylor Swift song. Her costume-drama vision of romance may get old someday. But for now, her tunes are so shapely that you hardly notice. Her latest, from the Valentine's Day soundtrack, is more or less a song-length hook bolstered by muscular guitars and a big, arcing chorus. And Swift remains a great lyricist, filling the story with touching details, like when she sings, "You told me I was pretty when I looked like a mess."