Following their breakup, pop band "Cheburashka" made an unprecedented appearance at the KOC concert. The band had disbanded previously, making their surprise performance a remarkable event in Japan's pop music scene. While details on why this surprising reunion took place have yet to fully emerge, the event gained significant attention and sparked excited chatter among fans and the broader music industry.

Band disbandments and reunion concerts are a prominent feature of the Japanese music industry. Fans cultivate strong emotional attachments to bands and their individual members. A disbanded group's unexpected return to stage creates a significant buzz and is often followed with anticipation and excitement for potential rebirth or closure.

Disbanded bands making surprise concert appearances is not uncommon in the West either. Popular bands like ABBA and My Chemical Romance have made surprise returns after years of disbandment, generating enthusiastic responses from die-hard fans and media alike.