 Ellefson denied rumors that Megadeth would disband, and said he and Mustaine would continue working on new music.Mustaine said that one of the reasons for Broderick's and Drover's departure was the frustration caused by Megadeth's fan base demanding a reunion with Friedman and Menza.Lamb of God drummer Chris Adler and guitarist Kiko Loureiro of Angra were brought in to perform on Megadeth's fifteenth studio album.