Why I Sing the Blues (feat. Keb' Mo', B.B. King, Vince Gill, Lee Ritenour & Jonny Lang)

Warren Haynes, Gregg Allman, Derek Trucks, Susan Tedeschi, Devon Allman, Robert Randolph, Jimmy Hall, Sam Moore, Keb' Mo', Brantley Gilbert, Dr John, Pat Monahan, John Hiatt, Taj Mahal, Widespread Panic, Trace Adkins, Vince Gill, Martina McBride, Eric Church, Jackson Browne, Zac Brown & The Allman Brothers Band