TWICE isn't even back yet and they're hitting millions!
Their first teaser for "Knock Knock" has hit over 2 million views, and their second teaser has hit over 1 million views (almost 1.5 million, at time of writing). It's been two days since their first teaser and just one for their 2nd teaser, so it just shows how much fans are looking forward to their comeback.
SEE ALSO: TWICE to hold debut showcase in Japan
The girls are coming back very soon at midnight KST on the 20th!