'World Star' Psy performed his hit song "Gangnam Style" in front of President Obama.

On December 9, Psy performed the finale of the 'Christmas in Washington 2012' concert. He changed the lyrics of the song to "Oppa Christmas Style" to fit the season.

Many had anticipated President Obama to dance to the 'horse dance', however, he did not dance during Psy's performance.

President Obama attended the concert with his family.

This show will air on TV on December 21.