On August 15, 2025, fans at Summer Sonic Osaka had to face sad news. KATSEYE pulled out of their scheduled performance because two members were feeling ill. Following this cancellation,  the girl group confirmed that member Manon won’t be able to perform at Summer Sonic Tokyo on August 16. According to an official statement, her health condition declined after landing in Japan’s capital.

Initially, the members wrote a handwritten letter to soften the blow of the Osaka show cancellation. However, Manon’s absence was officially confirmed by KATSEYE’s community manager. While the members expressed their sadness due to missing the Osaka stage, they have not yet addressed Manon’s pullout themselves. Still, he girl group is expected to perform as a 5-piece in Tokyo.

Despite the unfortunate news, KATYSEYE’s team ensured that the members’ health and the well-being of fans remain their top priority. Meanwhile, KATSEYE has been breaking through with their recent EP “Beautiful Chaos,” which has spawned viral Internet hits, such as “Gnarly,” and the Latin pop-infused track “Gabriela.”