Psy may be gleefully dancing across America’s favorite talk shows, delighting viewers with performances of his hit “Gangnam Style,” the music video for which recently became the most successful music video ever. But his attitude towards Americans wasn’t always so warm. Back in 2004 during a protest against the U.S. military presence in Iraq following the beheading of a Korean missionary, Psy wrapped about torturing and killing American soldiers and families. “Kill those fucking Yankees who have been torturing Iraqi captives,” was one choice line. Psy is set to perform for President Obama on Sunday … awkward.