Singer Psy's stage was filled with various girl group members.

On the London Olympics Special on SBS "Inkigayo" that aired on the 29th, Psy performed his song "Kangnam Style."

This performance gained attention because various girl group members joined him. In the middle of the song, SISTAR wore black mini dresses and joined Psy. Then after, After School and MC Goo Hara and Nicole joined as well.

Internet users said, "Psy must be the trend," "I was shocked to see girl group members coming out," "My attention kept going to the performance," "Psy's popularity is the best," "My expectations are going up for Psy's performances."

Psy's song "Kangnam Style" has an intense beat and comical lyrics that is top on the charts.