In May 2012, it was revealed on Dean Delray's comedy podcast "Let There Be Talk" that Homme would make a guest appearance on the album by Nick Oliveri's project Mondo Generator called "Hell Comes To Your Heart". The album was recorded over three days at Homme's Pink Duck Studios in Burbank, California, and features Homme playing guitar on the album's final track, "The Last Train". This marked the first time Homme and Oliveri collaborated since their public falling out in 2004. "The Last Train" also features fellow former Kyuss bandmate John Garcia providing vocals, which was recorded shortly before Homme's lawsuit with Garcia regarding the Kyuss Lives! band name; it was the first time Homme had collaborated with Garcia since 1997.