Watch the brand new Chris Cornell video for "You Never Knew My Mind" (From The Cash Cabin)

In 1996, Johnny Cash recorded a cover of Soundgarden’s hit “Rusty Cage,” written by frontman Chris Cornell, on his Grammy-winning album ‘Unchained.’ Twenty years later, Cornell wrote the next chapter in this unique musical relationship by setting a newly discovered poem of Cash’s to music, to create the stunning all-new song “You Never Knew My Mind.”

It was recorded at the historic Cash Cabin Studio in Hendersonville, TN, and marks one of Cornell’s final solo recordings. The song is featured on ‘Johnny Cash: Forever Words,’ out April 6 on Legacy Recordings, a division of Sony Music Entertainment.

The album is comprised of Cash’s unknown poetry, lyrics, and letters, now set to music by an all-star array of contemporary artists. Along with Cornell, the album features new songs by Ruston Kelly & Kacey Musgraves, Rosanne Cash, Alison Krauss & Union Station, Kris Kristofferson & Willie Nelson, Brad Paisley, John Mellencamp, Carlene Carter, Elvis Costello, The Jayhawks and more.

For nearly 60 years, the words of Johnny Cash have reached across cultural, spiritual and ideological borders. He was not only a singer of great songs, but a teller of universal truths about justice, faith, love, and independence. It was in this spirit that Johnny Cash: Forever Words, was created. Recorded primarily at The Cash Cabin Studio in Hendersonville, Tennessee and co-produced by John Carter Cash and Steve Berkowitz, Johnny Cash: Forever Words is also the musical companion to the best-selling "Forever Words: The Unknown Poems," a volume of Cash's unpublished writing edited by Pulitzer Prize-winning poet Paul Muldoon.