The date in the original video was written wrong (It should be 2019, but it's written 2018)
Maybe it took them some time to realize their mistake because the right video was re-uploaded about 1 hour later
-Whoa.. Anyway his teaser looks really cool..
-Taemin is a really great dancer..
-What a pity.. The original video must've gotten so much views, though.. Anyway, the teaser is insane!!
-SM is out of their minds^__^
-SM sucks at doing their job, seriously..
-SM being SM, not doing their job properly..
-SM surely never changes..
-SM-ah, it has been over a month since 2019 started..
-I like Taemin because he's really unique..ㅋㅋ
-View counts is very important for an idol, I can't believe they still make such mistakes..
-I was wondering why they uploaded the same video, turns out that they had a mistake in the previous one..
-What's the reason behind SM not re-checking every little details..?
-Checking whether if there's a typo or not is the most basic ones before uploading videos, don't they even know that?
-I'm not even surprised at all now..
-You assholes better not make any mistakes on the day of the MV release..
