It's the choreography in the 'I thought I'm all grown up now' part..
The original choreography that 1Million made
After JYP revised it:
This will make you realize how great JYP is at creating choreography..ㄷㄷ
-Thanks God..ㅋㅋㅋㅋ
-It's a good thing that he changed it.. The original moves from 1Million didn't suit the lyrics at all..ㅠㅠ
-Twice is known for their easy-to-follow and cute choreography, they made a good decision by changing it..
-I'm sorry.. I think I have a really poor eyes, I don't see any difference from those gifs.. Can someone point out the difference for me?ㅠㅠ
-I heard from somewhere that JYP didn't change the choreography, it's just 1Million's own version of TT..
-Whoa, amazing!! That part is actually my favorite part of the whole choreography!
-The revised one suits the song so much better..ㅎㅎ
-The original version looks so cool, but it's not something that's Twice-ish..ㅎㅎㅎ
-But still, 1Million is the best! No one can beat Lia Kim when it comes to dancing..
-Lia Kim is the best..! And where do you know that JYP revised the choreography himself? Please put some source!!
-Yeah, the revised one clearly have the JYP's vibes in it..
-The original moves look so funny..ㅋㅋㅋ
-Are you sure that JYP revised the choreography himself?
-The changed one looks more girl group-ish and suits Twice's image better!
-I feel sad because it feels like people are laughing and making fun of the choreography that Lia Kim made..ㅠㅠ