Bono? Sir Bob Geldof? I Don't Recognize Those Two, but That Guy in the Middle Is Willie Nelson

While Bono tries to change the world by hobnobbing with politicians and Sir Bob Geldof plays host to his mega-benefit concerts, Willie Nelson has birthed his own brand of alternative fuel. It is called, fittingly enough, BioWillie. And in BioWillie, Mr. Nelson, 72, has blended two of his biggest concerns: his love of family farmers and disdain for the Iraq war.