The blues hitmaker and the folk rock duo are among the artists featured on Buy This Fracking Album, a two-disc record intended to educate listeners about the controversial gas extraction method of hydro-fracking.

Raitt, who contributed her 1994 track Hell to Pay and a new live version of a cover of Woody Guthrie's This Land Is Your Land, says in a statement, "One of the most critical environmental issues of our time is banning fracking everywhere because it destroys our water, our communities and our planet."

Among the other artists featured on the 24-track record are Pete Seeger, John Butler Trio, Michael Franti, Meshell Ndegeocello, Natalie Merchant, Rusted Root, Anti Flag and Steve Earle.

Proceeds from Buy This Fracking Album, which is set for a 16 June (15) release, will go towards various anti-fracking organisations, including Food and Water Watch and Marcellus Protest.