Ryan Adams has produced the entirety of Walker's seventh studio record, Afraid Of Ghosts. Johnny Depp features on the lead single, "21+", injecting his guitar prowess into the fray into the form of a sizzling solo. 

The result of the team effort is a grazed-elbow country-western ballad. Morose guitars and slick '80s axe licks (courtesy of Depp) litter the cut, with melody generally conveyed by the gently plink-plonk of old piano. Walker's lyrics and vocals are tender - Adams' presence is clearly felt, but it doesn't overshadow the main man's raw talent.

Listen below.

Afraid Of Ghosts is out 2 February via Lojinx in Europe.