There is more than one artist with this name:
1. A Black/Death Metal band from Blue Mountains, Australia
2. A Brazilian indie rock band lead by Rodrigo César (aka Rodrigo Guedes) (Killing Chainsaw) from Londrina, Paraná.
3. A pseudonym of German minimal electro artist Paul Kalkbrenner. 1. The Australian Grenade began in 1998 after guitarist, Nigel, then a member of two other underground Sydney metal bands, found three fellow metal maniacs, who knew their way around their instruments, to give spirit and form to music that he had begun writing literally years before.