the next Slayer album, saying, "When that time comes and we are ready for the next album, if Kerry wants me to contribute, I've got riffs. I've got stuff right now that I've written that I am not using for Exodus, because it was kind of maybe just unintentional subconscious thing, like, 'It sounds a little too Slayer.'" On January 22, 2018, Slayer announced their farewell world tour through a video featuring a montage of press clippings, early posters and press photos spanning the band's entire career. Although the members of Slayer have never publicly explained why they were retiring from touring, it was thought that one of the reasons behind this decision was at the expense of Tom Araya's desire not to tour anymore and to spend more time with his family. This was confirmed by former drummer Dave Lombardo in a 2019 interview, who said: "Apparently, from what I hear. Tom has been wanting to retire when I was in the band — he wanted to stop. He had the neck issues. He's been wanting to retire for a long time now. So now that he's got it, I'm happy for him, and I hope he gets what he wants out of life and his future." The farewell tour began with a North American trek in May and June 2018, supported by Lamb of God, Anthrax, Behemoth and Testament. The second leg of the North American tour took place in July and August, with Napalm Death replacing Behemoth, followed in November and December by a European tour with Lamb of God, Anthrax and Obituary. The farewell tour continued into 2019, with plans to visit places such as South America, Australia and Japan; in addition to European festivals such as Hellfest and Graspop, the band toured the United States in May 2019 with Lamb of God, Amon Amarth and Cannibal Corpse. Slayer also played one show in Mexico at Force Fest in October 2018. On December 2, 2018, Holt announced that he would not perform the remainder of the band's European tour to be with his dying father. Vio-lence and former Machine Head guitarist Phil Demmel would fill in for him as a result. Holt had stated that Slayer would not release a new album before the end of the farewell tour. On how long the tour would last, Holt's Exodus bandmate Steve "Zetro" Souza commented, "I'm speculating it's