A five-disc box set featuring many previously unreleased songs from late country legend Johnny Cash is due out next month.
Billboard reports that 'Unearthed' features 79 tracks, 64 previously unreleased, and all produced by Rick Rubin during the sessions for Cash's 'American Recordings' quartet from 1994 to 2002.
Joining Cash on some of the unreleased songs are the likes of Willie Neslon, Glen Campbell, Joe Strummer, Nick Cave and Fiona Apple.
The five discs are organised thematically: 'Who's Gonna Cry', 'Trouble in Mind', 'Redemption Songs', 'My Mother's Hymn Book' and a Best of Collection, 'Best of Cash on American'.
The box set is accompanied by a 104-page clothbound book where Cash and Rubin discuss each track and which also features one of the singer's last interviews with his producer.
