I already saw Korn in the States... but then I live there, so :P
I can at least say that neither I nor any of my friends will mug any SPW folks from Portugal. :P
If the show is in the New England area (Rhode Island, Massachusetts) then you're in luck, thoughtless-- there's a sizable Portuguese population in these parts (mainland, Azorean, Cape Verdean, Brazilian). Hell I'm a bit over half Portuguese myself
(My grandfather is from the Dao area i think. He's been in the US for over 80 years but still can speak Portuguese. My other grandfather was born here but moved to the Azores when young, then forgot how to speak English and had to re-learn it when he returned

.)