TWICE is all excited to see who's knocking in MV teaser > K-POP

'​Knock Knock​'! Who's there? Because ​TWICE​ is excited to meet whoever it is knocking on their door. Is it their first love? Santa? Kids in Halloween costumes? 

Fans know from their '​TT​' music video that there were two kids in Halloween costumes, knocking on the door to get candy and instead entered the house to see what surprise lay in store for them. That music video ended with a knock on the door, inevitably leading up to this moment. For the 'Knock Knock' music video, we hear knocks on the door, then TWICE running down the stairs excitedly, but as usual, JYP teases fans by not showing who shows up at the door.

Just a few more days until questions are answered!

​written by Korea.com's Emily