Better question- which song is D4 of 4th generation ?

Love Dive, I guess, I don't feel any impact in any of the 4th gen hits in the same way it happened with D4, at most Next Level inspiring jyp to create Nmixx, but even then the song feels very small compared to Love Dive which also feels smaller than D4

If we look global success Itzy Wannabe could be contender

"Ddd du ddu du" have not aged well. "How You Like That" have aged better.

So probably an Everglow song is its equivalent.

Quote from kirishiki

If we look global success Itzy Wannabe could be contender

No one knows about "Wannabe," though.

There isn't one yet.

Quote from kirishiki

If we look global success Itzy Wannabe could be contender

Wannabe is only like 1/10 as big as DDDD globally