Neko Case and Carl Newman of The New Pornographers say a great pop song opens your heart up and makes you want to hear it again and again. Chris Buck/Courtesy of the artist hide caption

itoggle caption Chris Buck/Courtesy of the artist

John Darnielle's first novel, Black Sabbath's Master of Reality, was about a teenage boy in a psychiatric institution who is obsessed with heavy metal. Lalitree Darnielle/Courtesy of Farrar, Straus and Giroux hide caption

itoggle caption Lalitree Darnielle/Courtesy of Farrar, Straus and Giroux

"I've had to change," Nick Cave says. "Change is important and change is the energy that runs through all of our records." Courtesy of Drafthouse Films hide caption

itoggle caption Courtesy of Drafthouse Films