With Best Of, Mondo Generator compile tracks from their albums and numerous EPs. Topped with artwork by Branca Studio the collection spans the career of the band, with guest appearances throughout from Josh Homme, Dave Catching, Dave Grohl, Alain Johannes, John Garcia, Brant Bjork, Alfredo Hernandez, Mark Lanegan, Chris Goss and many more. As of the fall 2015, Mondo Generator have been working as the trio of Oliveri, guitarist Mike Pygmie and drummer Jeff Bowman. "I'm stoked that somebody wants to put out the Best Of record and the songs on the album are the best songs over the years, 1997 to the present," says Oliveri. "I feel that those records slipped through the cracks and now this is a chance for people to get a better presentation of the band. Only the best songs off the records!"