Some of the most talented performers from the rock, pop, country, blues, R&B,    soul, and folk worlds appear in this wonderful tribute to populist musical       heroes Woody Guthrie and Leadbelly. Among the highlights: Bob Dylan salutes      his idol with "Song to Woody," Bruce Springsteen sings "Vigilante Man" and "I  Ain't Got No Home," John Mellencamp offers a version of "Do Re Mi," U2         performs "Jesus Christ," Pete Seeger and Arlo Guthrie team up for "Alabama     Man" and "Union Made," and Little Richard delivers a rousing "Rock Island        Line." There are also great numbers from Emmylou Harris, Sweet Honey in the