1 ) 4th gen idols look significantly older for some reason than Twice did at that age. I'll blame it on styling
2 ) 4th gen idols have one expression and thats a fake sassy smile
3 ) Cheer Up wasnt my favorite song but now its a part of my childhood and I like it. Twice sang the lyrics like they meant something, no matter how cringe they were. This really sets apart groups like Twice and BP from momentary trendy groups.
4 ) astonishing how much hate twice got for lipsyncing during some Cheer Up stage. Now lipsync is the default.