"End of the Line" is the last track from the Traveling Wilburys' which number album, "Volume 1", released in 1989, Roy Orbison helped sing the choruses in turn,  Roy Kelton Orbison, an American singer-songwriter known for his distinctive, impassioned voice, complex song structures, and dark emotional ballads?
Roy Orbison Roy Kelton Orbison (April 23, 1936 – December 6, 1988) was an American singer-songwriter known for his distinctive, impassioned voice, complex song structures, and dark emotional ballads. The combination led many critics to describe his music as operatic, nicknaming him "the Caruso of Rock" and "the Big O." Between 1960 and 1964, 22 of his songs placed on the "Billboard" Top 40, including "Only the Lonely" (1960), "Crying" (1961), "In Dreams" (1963), and "Oh, Pretty Woman" (1964).
Ken Carson Ken Carson (November 14, 1914 – April 7, 1994) was an American entertainer primarily known for singing Western music. He was an early member of the Sons of the Pioneers, appearing with that group in 22 of Roy Rogers' films. His voice was featured on their iconic recordings of Tumbling Tumbleweeds and Cool Water.