Holt was brought in as a full-time member of the band after Jeff Hanneman's death, but never contributed to the writing of upcoming album Repentless, which is released on September 11.

And Bostaph - who previously worked with Holt in Exodus - can't wait to hear the results of Holt's future collaborations with Kerry King. Bostaph tells Metal-Rules: "If Gary contributes, it's gonna be nothing but crushing and heavy. Kerry's doing a fantastic job, but this band has always had two guitar players that have written. So, I hope if Gary gets involved in it, him and Kerry work together on some stuff. It could make for some really crushingly heavy music.