It was released as the lead single from the album Pink Tape on July 29, 2013, through SM Entertainment.
[1] f(x) compare themselves to the pesky molars in another one of their typically bizarre metaphors, with lyrics like, "Attention boys!
[6] The song rose to the number one spot on all of South Korea's music portals upon its release.
Throughout the video, the camera focuses on choreography, and zooms in on each girl in walking on the white set room with floating flowers.
An issue of plagiarism arose when the Department of Health of the Philippines when they released a music video called "Gaga Girl Bobo Boy" for their campaign against teenage pregnancy.