Mortal Sin has been played on NTS in shows including A Fist in the Face of God presents: Midnite Madness, featured first on 16 December 2013. Songs played include Mayhemic Destruction, Into The Fire and Mortal Slaughter.

Mortal Sin is a thrash metal band that formed in 1985. The group formed around singer Mat Maurer and drummer Wayne Campbell in Sydney, Australia. At first Campbell had attempted to get Maurer into another band called Wizzard but the rest of that band was reluctant to support the idea so the pair struck out on their own, quickly recruiting Wizzard's guitar Keith Krstin, bass player Andy Eftichiou…