Hannah Jackson / Vogue: Chappell Roan on "The Subway," Writing Through Heartbreak, and Loving Her Job Again - On a humid July afternoon, Chappell Roan is standing near the doors of a subway car, fiery red hair cloaking her pale, moonlike face. Only, the 27-year-old pop star-born Kayleigh Rose Amstutz-isn't packed in with New York's myriad commuters.