Wonder Woman () is the second project single by South Korean girl groups SeeYa, Davichi, and T-ara released on January 7, 2010. It is a follow up to their previous single released together, Women's Generation, with the music style continuing to revolve around themes of women's empowerment, hence the name Wonder Woman. Although T-ara is officially credited on the single, only Eunjung and Hyomin participated in the song.
The single, like its predecessor "Woman's Generation", were written by K. Smith while production and composition was handled by .
The song was an instant hit, with "Wonder Woman" peaking at number six on the Gaon Music Chart, and ranking at number 21 on the year-end Gaon chart in 2010 with 2,301,658 sales. At the time of its release, it also was nominated for No. 1 on music show broadcasts.
WSG Wannabe performed "Wonder Woman" (along with "Women's Generation") at their first concert, which was broadcast by MBC. According to Nielsen Korea (reported by MBC News), the highest rated part of the concert was the cover songs performance which achieved a rating of 7.0%, and videos of the performance exploded with popularity online, earning over 6 million views.