The pair teamed up with folk activist Billy Bragg in the studio to promote the singer's campaign to help rehabilitate prison inmates.

Bragg's Jail Guitar Doors initiative, named after the song, supplies musical instruments to prisoners. Several inmates have gone on to pursue careers as performers since the scheme started two years ago. "The guys were telling us how much this scheme had helped them move on from their previous lives before prison," Jones said in a statement. - more on this story

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