There is no telling how many celebrities and world leaders have been on Willie Nelson’s tour bus. His longtime collaborator and producer Buddy Cannon has met several public figures while onboard Nelson’s home on the road, including former president Jimmy Carter, Woody Harrelson, Matthew McConaughey and James Caan. “Every conceivable celebrity that you can think… <a href="http://www.cmt.com/news/1793987/inside-willie-nelsons-last-man-standing/" title="Read Inside Willie Nelson’s Last Man Standing“>Read more »