pop x LGS

In the Korean comments

One comment supplies the clearest meaning of “LGS” in the title, saying, in translation, “Pop is so good and incredibly addictive, and the melody also reminds me of Lucky Girl Syndrome.” Another notices ILLIT reusing earlier choreography or songs, while a third points viewers to Yunah’s smile at the end.

What the words mean

“헐 23초전 미쳤다” (heol, “No way—23 seconds ago, this is wild”) literally includes “went crazy,” but here it expresses excited disbelief at seeing a 23-seconds-ago timestamp. It is casual and deliberately exaggerated, not a statement about anyone’s mental state.