"The Twentieth Century is Almost Over" was re-recorded five years later by Cash and Waylon Jennings,  Kris Kristofferson, and  Willie Nelson, one of the most recognized artists in what type of music?
Willie Nelson Willie Hugh Nelson (born April 29, 1933) is an American musician, singer, songwriter, author, poet, actor, and activist. The critical success of the 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. He was one of the main figures of outlaw country, a subgenre of country music that developed in the late 1960s as a reaction to the conservative restrictions of the Nashville sound. 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.
American folk music The term American folk music encompasses numerous music genres, variously known as traditional music, traditional folk music, contemporary folk music, or roots music. Many traditional songs have been sung within the same family or folk group for generations, and sometimes trace back to such origins as Great Britain, Europe, or Africa. Mike Seeger once famously commented that the definition of American folk music is "...all the music that fits between the cracks."