We have groups that their biggest song in Korea is not necessarily their biggest song internationally or overall. By the way them having a bigger song internationally doesn’t mean it performed bad in Korea, it might or might not.
It’s interesting how majority of the groups have a different song as their biggest hit in Korea and internationally.
Some examples I can mention of different songs are: (note (K)=Korea and (I)= internationally)
EXO: (K): Growl (I): Love Shot
Seventeen: (K): Aju Nice (I): Don’t Wanna Cry
BTS: (K): Spring Day (I): Dynamite
Red Velvet: (K): Red Flavor (I): Psycho/ Bad Boy
BLACKPINK: (K): DDU-DU DDU-DU (I): How you like that
ITZY: (K): DALLA DALLA (I): WANNABE
As same song in both I can only mention:
Is it really uncommon or I just don’t know sh1t? 
