Taylor Swift, the extravagantly blond, improbably blue-eyed, intimidatingly leggy 18-year-old star is sitting in the driver’s seat of her Lexus SC430, idling outside a two-story house on a serene side street in her hometown of Hendersonville, Tennessee. Hendersonville is a suburb of 40,000 that stretches along the northern shoreline of scenic Old Hickory Lake, just outside Nashville. There are a couple of gaudy strips near the turnpike, packed with malls and chain restaurants, but in general, it’s a lovely, leafy place, with pretty homes set back from well-manicured lawns on pleasant little streets and culs-de-sac. A bit farther outside town, the landscape turns horse-country bucolic, and the houses get much, much bigger. Swift, who offered to show Blender around Hendersonville, has already piloted the Lexus past Roy Orbison’s old mansion and a sprawling compound that once belonged to Johnny Cash.