Watch Jack White and Nas cover 1920s blues track

Footage will feature on forthcoming 'American Epic' documentary series

New footage of Jack White performing a 1920 blues cover with Nas has surfaced online.

The clip, which is taken from the forthcoming documentary series, ‘American Epic’, sees the pair performing the track ‘On The Road Again’, by the Memphis Jug Band. You can watch footage below.

“It’s the same as rap music today,” Nas says. “They were rapping about street life and gangster life and hustling, just a dark side of the world.”

The series, which airs on May 16, explores the history of the 1920s, in which record companies travelled across America with the first electrical recording rig in search of new artists.

The original machines are no longer usable but audio engineer Nicholas Bergh reassembled one from its original parts for the project. His rig was used to record all the music for the accompanying film, The American Epic Sessions.

The three-part documentary was executive produced by Jack White, along with Robert Redford and T Bone Burnett.

The series will come with an extended companion soundtrack that includes a 100-song boxset, orginial archived recordings and studio performances from ‘The American Epic Sessions’.

The soundtrack is set for release tomorrow (May 12), via Legacy Recordings, Columbia and Jack White’s record label Third Man Records.

The artists involved include: Alabama Shakes, The Americans, The Avett Brothers, Beck, Frank Fairfield, Ana Gabriel, Rhiannon Giddens, Merle Haggard, Bobby Ingano, Elton John, Auntie Geri Kuhia, Pokey LaFarge, Bettye LaVette, Los Lobos, Lost Bayou Ramblers, Taj Mahal, Steve Martin & Edie Brickell, Fred Martin and The Levite Camp, Ashley Monroe, Nas, Willie Nelson, Charlie Kaleo Oyama, Blind Boy Paxton, Raphael Saadiq, and Jack White.

A companion book for the series with behind-the-scenes accounts as well as interviews with those who witnessed the first recordings was recently released.

The White Stripes frontman is currently recording in Nashville, Tennessee, with a follow-up to 2014’s ‘Lazaretto’ – his second solo album – in the works.