Taylor Swift fans sang and danced on Sunday to her new hit “The Fate of Ophelia” at a German museum exhibiting a painting thought to have inspired the video for the chart-topper. Some came as Ophelia, in white dresses with flowers in their hair, while others donned sparkly outfits like those often worn by Swift, as they descended on the western town of Wiesbaden. They were attending a special event to see the painting by artist Friedrich Heyser, which shows Ophelia, a character in Shakespeare’s...