What is it about the closing songs of our favorite albums, particularly when it comes to the iconslogged forever into the rafters of the Hall of Fame echelon of iconic rock music, that makes them so memorable? There are the opening tracks too, of course; your invitation to "Thunder Road," the depth of riffs that bury you on your excursion of "Welcome to the Jungle," and even the phone buzzing that lets you know that it's "London Calling." Let's not even start with the depth and the amount of "Purple Haze" coming through the doorway.