Phone interview in March of 2017 with Def Leppard guitarist Phil Collen while he was on his way to his martial arts workout in LA. We discussed the tour with Journey and how they decided who goest on-stage first, what he thinks their Def Leppard's biggest song is, playing the G3 tour, Delta Deep, Axl Rose with AC/DC, producing the new Tesla album plus celebrating the upcoming birth of his son.