They are indeed Christian. You see they're Armenian, which is the first christian country (even before the Roman Empire). And today they're one of the most devout people on the planet. You will not find an Armenian who isn't Christian (practicing or not).
I know this because I am Armenian myself.
They are clearly not Muslims like the previous guy said (dude check your history, ever heard about the Armenian genocide? Muslim Turks that killed over 1.5 million christian armenians?)
But they aren't a 'Christian rock band'. They're just a normal secular rock band. They practice their faith private.
Yes they are a awesome christian rock band
System of a Down is American rock/metal band.
three of the members are from libanon , and they are Muslims , and one are from armenia he's christian , so soad is not a Muslim band , just some of the members,
Their wiki states they are.
the band did not retire
No they are not
the best band