Kevin Winter, Getty Images

In the past few months, Psy has become a household name associated with a light-hearted gallop-style dance. The South Korean pop star’s “Gangnam Style” video has reached more than 900 million views, earning him someserious bank.

Many of the people singing (and “Gangnam Style”-dancing) his praises are American, including Madonna, Britney Spears and Justin Bieber. Unfortunately, it appears the love was not always reciprocal.

New York Magazine reports that during a 2004 protest attacking the U.S. presence in Iraq in the wake of the beheading of a Korean missionary, Psy was featured in a song called “Dear American.” The group N.E.X.T. performed it, but Psy rapped some pretty controversial lines encouraging the killing of American soldiers and their families in retaliation.

The following are the lyrics he rapped in “Dear American:”

Kill those f–king Yankees who have been torturing Iraqi captives
Kill those f–king Yankees who ordered them to torture
Kill their daughters, mothers, daughters-in-law and fathers
Kill them all slowly and painfully.

As of now, the “Gangnam Style” dancer is still set to perform in front of President Obama at the National Building Museum’s Christmas in Washington concert on Dec. 9.