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