On October 1, 2011, SM Entertainment released the first teaser for "The Boys", followed by the second teaser on October 7, 2011. Both teasers showed Yoona picking up a black crystal, and proceeds to show the rest of the members in an outside, misty atmosphere. Later on October 13, 2011, SM Entertainment released 16-second teaser clips for both the Korean and English versions of "The Boys". The teaser depicts the girls rapping and chanting along to the song. On the same day, SM released 30-second teaser clips of "The Boys", which showed a longer version of the previous teaser videos.
