 Ellefson also appeared on the new Killing Machine record "Metalmorphosis" in 2006 alongside DeGrasso; he has also been working with Temple of Brutality.Ellefson is currently a member of the melodic power metal band Avian which features singer Lance King.He commented in an interview with Alternative-Zine.com that "Megadeth was really just a starting point for me, creatively".