A duet between Florence + The Machine's Florence Welch and Queens of the Stone Age mainman Josh Homme has appeared online.

The pair collaborated last year when Florence + The Machine recorded a special live set for MTV's renowned Unplugged series.

They sang together on a cover of Jerry Leiber and Billy Edd Wheeler's song 'Jackson' - best known for Johnny Cash's version of the track.

The song comes off a 11-track album which is due to be released on April 9.

Other tracks to featured in the stripped down set include 'Drumming Song' and 'No Light, No Light'.