Shotgun Willie is the 16th studio album by American country music singer-songwriter Willie Nelson, released on June 11, 1973. The recording marks a change of style for Nelson, who later stated that the album "cleared his throat". From Wikipedia
Country Music Legend Willie Nelson Celebrates Rock & Roll Hall of Fame Induction with Star-Studded Performances; Nelson’s Hits Revisited in New ‘Greatest Hits’ Album and Upcoming CBS Special Honoring his 90th Birthday.