Dolly Parton has lived her life in the spotlight; running five-plus decades deep, her catalogue has plenty of corners to explore. She flirted with disco with the four-on-the-floor pulse of “Potential New Boyfriend” just as effortlessly as she made like a modern-day Carter Family (alongside Linda Ronstadt and Emmylou Harris) on the harmony-heavy old-school country tune “Rosewood Casket”.