Haggard's songs attracted attention from outside the country field. The Everly Brothers covered both "Sing Me Back Home" and "Mama Tried" on their 1968 country-rock album "Roots". The following year, Haggard's songs were performed or recorded by a variety of artists, including the Gram Parsons incarnation of the Byrds, who performed "Sing Me Back Home" on the Grand Ole Opry and recorded "Life in Prison" for their album "Sweetheart of the Rodeo"; singer-activist Joan Baez, who covered "Sing Me Back Home" and "Mama Tried"; crooner Dean Martin, who recorded "I Take a Lot of Pride in What I Am" for his album of the same name; and the Grateful Dead, whose live cover of "Mama Tried" became a staple in their repertoire until the band's end in 1995.