27 Asleep at the Wheel Bonnie "Prince" Billy CeeLo Green Crystal Gayle Dusty Springfield Elvis Presley Emmylou Harris Garth Brooks Hal Ketchum Jamey Johnson John Prine Johnny Cash Johnny Cash and Waylon Jennings Kathy Mattea Randy Travis Ronnie Milsap The Highwaymen Trisha Yearwood Tyler Childers Waylon Jennings Willie Nelson