The Wonder Girls took the stage during the JTBC "Music on Top" show on December 15. JTBC's "Music on Top" was a concert showcasing 2011 female pop artists of South Korea. The concert took place at the Seoul Hoam Art Hall, and started at 6:25 PM on December 15.

JTBC held the concert in honor of female artists who were especially influential and drew interest in Kpop this year. These women not only had popular songs but also dances, such as SNSD with their "Spiderwoman" dance, Kara and their hip-swaying moves and many more.

Along with the Wonder Girls, T-ara, Secret, Sistas were among the many girl groups present at the concert.