A fourth-gen girl group member recently became a hot topic on social media thanks to her unusually bold stage outfit.
The idol in question is Tsuki from the girl group Billlie.
Tsuki | @bunny9tsuki/Instagram
Billlie recently took the stage at the 2026 Waterbomb Festival in Seoul, delivering power-packed live performances. However, Tsuki appeared to steal the show with her teal top-and-ripped jeans look, complete with a matching eye makeup that made her visuals stand out even when she was splashed from head to toe.
| @bunny9tsuki/Instagram
However, the outfit also stirred up some debate on social media. Notably, Tsuki’s pants were styled in a low, sagging manner, exposing the bikini bottom she was wearing underneath. However, in some videos, the idol was seen dragging it up, giving many the impression that she was uncomfortable with the level of exposure of the outfit. Many also questioned whether the stylist forgot to consider that the pants would get heavier once wet and sag lower.
260725 워터밤 서울 #츠키
여자 바지 올렸음 좋겠네 ㅜ pic.twitter.com/XIm49M7hL4
— 개큰대호 (@Toooobig_daeh5) July 25, 2026
I wish they’d pull up the girl’s pants.
— The post above
코디가 다음부턴 좀만 더 생각해줬으면 좋겠네..
청바지라 물에 젖어서 무거워지는건 당연한거잖아.. https://t.co/eOA5DgHY2Z pic.twitter.com/UpBxcT5JrR
— 꿍.. (@rrmeluu) July 25, 2026
I really wish the stylist would put a bit more thought into it next time…It’s obvious that jeans get heavy when they soak up water…
— The post above
걍 차라리 반바지를 입혀 시벌 https://t.co/PV4UCbhMgx
— 딤 (@dim_iland) July 25, 2026
Just put her in some shorts, damn it.
— The post above
However, many netizens also felt that the criticism was unwarranted and only ended up infantilizing the idol.
??? what a weird thing to say https://t.co/MadU5waSv4
— alina !! #ZAP (@belllievess) July 26, 2026
male idols would sag and no one bats an eye but if an female idol does it suddenly its a problem? She clearly doesn’t see it as a problem so why should you??? quit dpmo https://t.co/veX7Tsl9uN
— hyyh⁷ (@hyyhnabi) July 26, 2026
이정도면 의도한 스타일아닌가…? https://t.co/pLISy0ozYA
— 임유연 (@OurSpringNY) July 25, 2026
At this point, isn’t this the intended look?
— The post above
애초에 워터밤은 노출 목적으로 서는 공연 같던데 사사건건 코디 머리채를 그만 잡아야 함.. https://t.co/8RK5XMvMrU
— 콘치즈 (@hionseo) July 26, 2026
Waterbomb has always been kind of an event where showing skin is the whole point, so people really need to stop constantly going after the stylists…
— The post above
Meanwhile, Tsuki herself has indicated that she is comfortable sharing a bolder image with her fans than before, even on social media.
Girl Group Idol Flaunts Slim Figure In Bikini