From “Paul is Dead” to the harrowing supposed story behind Phil Collin’s “In the Air Tonight” to Jay-Z joining the Illuminati, wild rumors about rock stars have been around as long as there have been fans to repeat them. We take apart the biggest doozies, and look at how the Internet age has both helped debunk and spread many of rock’s greatest urban myths. Plus: new music from Father John Misty and Chance the Rapper pal Noname