Last night, most of us went to bed in a world where pudgy Korean rapper and viral sensation Psy was globally beloved for bringing us "Gangnam Style," the "Macarena" of 2012. But this morning we woke up to a different world — a colder, darker world — in which the internet was afire with the claim that Psy had performed at an anti-American concert in Seoul in 2004, where he rapped: "Kill those fucking Yankees who have been torturing Iraqi captives/Kill those fucking Yankees who ordered them to torture/Kill their daughters, mothers, daughters-in-law, and fathers/Kill them all slowly and painfully."