The Kingsmen's cover of "Louie, Louie" is one of the world's most famously unintelligible songs -- and this haunted the FBI. In this episode, Ben and Noel recount the evolution of "Louie, Louie", as well as Uncle Sam's insanely thorough (and hilariously unsuccessful) attempt to figure out the song's lyrics. The guys also rack up some extra credit with their special guest Christopher Hassiotis, who introduces them to the wide, wide world of "Louie, Louie" cover songs across multiple musical genres.