Bill O'Reilly returns to chat with Greg Kelly about his latest book, "Killing the Legends." In it, O'Reilly draws eerie and startling parallels between three of the biggest influences on pop culture: Elvis Presley, Muhammad Ali, and John Lennon. In this conversation, Bill and Greg discuss how those three icons shaped pop culture, and how the lasting effects of their fame reverberate today. Plus, O'Reilly offers his thoughts on why exactly Colonel Tom Parker held such sway over Elvis throughout Presley's life and career. "Killing the Legends: The Lethal Danger of Celebrity" is available now. Today's sponsor is Terrence K. Williams' Gourmet Pancake brand, Cousin T's Pancakes. Learn more here: Cousin T's (cousints.com).