Something from down under then. They're called The Delta Riggs and they're good! Wikipedia associates them with the well known Wolfmother, but haven't really found out the connection yet apart from the fact that they are both from Australia. Their sound is slightly more punky and would probably appeal to a mainstream audience. Raging guitars and fantastic voice!
No need to say much more about this band, just listen! If you like what you hear, try their older stuff too. It certainly impressed me.