“Anyone who’s massively successful doesn’t stay in a box,” says Phil Collen on Episode 56 of the ‘No Guitar Is Safe’ podcast. Presented by FU-Tone, this hour-plus interview finds Collen reflecting on how Def Leppard and legendary producer John “Mutt” Lange mixed hard rock with countless “outside the box” musical elements from other styles to create one of the biggest selling, most genre-bending rock albums of all time, Hysteria.