A recent girl group concert has become the center of heated discussions after fans were spotted carrying light sticks from various other K-pop groups instead of the performing artist's official light stick.

Photos and videos from the concert quickly circulated on social media, showing audience members holding a mix of different colored light sticks representing various fandoms. The sight triggered strong reactions from fans, with opinions split down the middle.

Some fans defended the practice, arguing that many people are multi-stans who support multiple groups and shouldn't be forced to hide their other interests. They pointed out that attending a concert shows support regardless of which light stick someone carries, and that gatekeeping fan behavior creates unnecessary division in the K-pop community.

However, other fans expressed frustration, viewing it as disrespectful to the performing artist. They argued that concerts are meant to create a unified atmosphere with matching light sticks, and bringing other groups' merchandise sends the wrong message about dedication and support.

The debate has reignited broader conversations about fan culture and expectations. Light sticks, known as "bongs" in K-pop culture, serve as both merchandise and a way for fans to participate in coordinated light shows during performances. Each group typically has a uniquely designed official light stick that creates a sea of matching colors during concerts.

This isn't the first time light stick etiquette has caused controversy in K-pop. Previous incidents have included fans using phone flashlights instead of official merchandise, or bringing homemade versions to save money.

The discussion highlights the evolving nature of K-pop fandom, where multi-stanning has become increasingly common. As the global K-pop audience grows, traditional fan practices continue to be questioned and redefined.

While there's no official rule about which light sticks fans can bring to concerts, the incident has prompted many to reflect on what constitutes respectful fan behavior and whether strict adherence to fandom traditions is necessary in today's diverse K-pop landscape.