Bonnie Simmons and Derk Richardson host a four hour special featuring the new music of John Prine, David Hidalgo & Louie Perez of Los Lobos, Mary Gauthier, Rufus Wainwright and Bettye Lavette's soulful interpretations of British rock classics. Bonnie and Derk will also be offering in-demand tickets for your pledges of support to the Harmony and Kate Wolf Festivals as well as other concerts including Mose Allison, Michael Franti and Spearhead and Shawn Colvin on tonight's program starting at 8 pm.