They are a constant car companion, "Born and Raised in Black and White" is one of my favorite country songs, and "The Highwayman" is one of my favorite to sing along to, trying to switch from Willie to Kris to Waylon to Cash and failing spectacularly at all of them. The drop into the chorus of Desperados Waiting for a Train does something special to my heart too. I'll be honest, Cash is the only one of the four I listen to religiously, but I love their combined effort.