Eddie Vedder, perhaps as much as any musician, used his celebrity to rally the efforts to get the West Memphis Three a new trial. So it should come as no surprise that he's contributing music to the 'West of Memphis' documentary about the now free former death row inmates Damien Echols, Jessie Misskelley Jr. and Jason Baldwin. Vedder, who lent his song 'Satellite' for the soundtrack, spoke about the track in an exclusive video at Diffuser.fm.

The singer wrote the song for Lorri Davis, a woman who first began corresponding with Echols after witnessing his plight in the 1996 documentary, 'Paradise Lost: The Child Murders at Robin Hood Hills.' Davis, believing the Echols and his friends were wrongly convicted of killing three youths, would later marry the inmate while he was still in prison and she tirelessly worked to clear her husband's name. Vedder reveals in his video commentary that Davis makes an unknowing guest appearance in 'Satellite' that is sort of a happy accident.

'Satellite' first appeared on Vedder's 'Ukulele Songs' album, but felt like a perfect fit for the 'West of Memphis' soundtrack. In addition to the Pearl Jam frontman, the disc includes contributions from Camp Freddy, Marilyn Manson, Henry Rollins, Band of Horses, Bob Dylan and more. It arrives in stores Jan. 15. You can check out Loudwire's exclusive premiere of Camp Freddy's 'West of Memphis' soundtrack contribution, 'The Jean Genie,' right here.

To see Vedder's video commentary, as well as the actual video for 'Satellite,' check out the exclusive preview at Diffuser.fm by clicking the button below.