Rapper Psy on Saturday topped the iTunes Top Songs Chart with his single "Gangnam Style."
The feat makes him the first Korean ever to reach No. 1 on the U.S. online chart.
YG Entertainment, Psy's agency in Seoul, said the singer's appearance on NBC's Today Show on Friday seems have helped boost the song's popularity.
The agency said it's amazing to see a Korean song by a Korean artist reach No. 1 on the iTunes chart, which accounts for about 80 percent of the U.S. online music market.
It seems U.S. fans can't get enough of the viral dance and music of Gangnam Style.
Psy also performed his hit single live on ABC's Good Morning America and he made a surprise appearance to teach Britney Spears his signature dance moves on NBC's "The Ellen DeGeneres Show."
Psy whose Korean name is Park Jae-sang is scheduled to reappear as a main guest on the popular program next week.
Gangnam Style quickly became a global sensation after the music video was released on YouTube on July 15.
The official version of the video has attracted more than 175 million hits as of this Saturday.