Common is taking the news out of North Korea very seriously, and knows exactly where he's heading if things really do go nuclear.

The singer was at LAX Sunday when he reacted to reports N. Korea had successfully mounted a hydrogen bomb on an ICBM. At first he joked about prepping for the worst -- stocking up on bottled water, and needing a "super rich" friend to come through with one very important item.

But Common has a very serious take on Kim Jong Un's threats, and how the world should react to all this "ego stuffing going on."