SM Entertainment "Number Of EXO Member Is 12"
SM made an announcement "All 12 members of EXO have been unveiled through teaser video".
In the Se Hun's teaser, which was released Jan. 11, the rest 11 members were seen in the end of the video. Surprise exposure of the members of EXO had fans excited.
SM said "Now all members of EXO has been unveiled. This teaser video contains only the full shot of the group, we are planning to unveil one by one from now again".