Willie Hugh Nelson is an American country singer, guitarist and songwriter. He was one of the main figures of the outlaw country subgenre that developed in the late 1960s as a reaction to the conservative restrictions of the Nashville sound. The critical success of his album Shotgun Willie (1973), combined with the critical and commercial success of Red Headed Stranger (1975) and Stardust (1978), made Nelson one of the most recognized artists in country music. Nelson has acted in over 30 films, co-authored several books, and has been involved in activism for the use of biofuels and the legalization of marijuana.

Outlaw country is a subgenre of American country music created by a small group of iconoclastic artists active in the 1970s and early 1980s, known collectively as the outlaw movement, who fought for and won their creative freedom outside of the Nashville establishment that dictated the sound of most country music of the era. Willie Nelson, Waylon Jennings, Merle Haggard, Johnny Cash, Kris Kristofferson, and David Allan Coe were among the movement's most commercially successful members.