아이오아이 Reunites After 9 Years, Storms Charts with New Song '갑자기'... Continues Journey with Asia Tour

아이오아이, who bridged a nine-year gap, once again captured public attention with the title track '갑자기' from their third mini-album 아이오아이: LOOP, released on May 19, 2026. The retro-tinged synth-pop song, which conveys sudden waves of longing and the aftertaste of memories, credits producers from 더블랙레이블 including 쿠시, 아이디오 and VVN, and features lyric contributions from member 전소미 that add narrative density. Initial reactions included some split opinions calling it “tacky,” but over time praise grew, with listeners calling it “addictive” and “stuck in my head.” According to reports, the group’s full live performances on music shows clearly demonstrated their renewed synergy.

Short-form parody content — including clips that riff on falling asleep then grabbing late-night snacks — and re-enactments of memorable Produce101 scenes turned into memes online, further boosting interest in the comeback. 아이오아이 originally debuted through '프로듀스101' in 2016 and disbanded the following year, but reunited nine members for their 10th anniversary. Although 강미나 and 주결경 did not participate, the reunion proceeded with 임나영, 청하, 김세정, 정채연, 김소혜, 유연정, 최유정, 김도연 and 전소미. Fans widely regard the reunion as a reaffirmation of the group’s status and influence as a 'nation’s girl group.'

Public interest translated quickly to chart performance. Upon release the song climbed to No. 4 on the Melon Top 100 and reportedly reached No. 3 on the Hot 100. Within a week it pushed toward the chart summit, and by the afternoon of May 28 it was reported at No. 2 on the Melon Top 100 and No. 1 on YouTube Music’s trending chart. Although pre-release sentiment was mixed, observers now say both mainstream appeal and fandom momentum have solidified.

Momentum from their comeback has already expanded beyond charts to an Asia tour. 아이오아이 opens the '2026 아이오아이 콘서트 투어: 루프' at Jamsil Indoor Stadium in Seoul from May 29 to 31, and plans to meet overseas fans in cities such as Bangkok (June 6) and Hong Kong (June 20–21). Fans are closely watching how the synergy formed by members who pursued individual paths over the past nine years will translate into emotional moments on this tour.

Another notable development is the viral '갑자기' challenge. Joined by senior and junior singers as well as actors, the challenge goes beyond simple choreography mimicry, evolving into personalized '갑자기' storytelling segments. Analysts say this is reaffirming 아이오아이's reputation as a musical IP and creating narrative immersion for both long-time and new fans.

The reunion after nine years, which has not only driven a short-term chart rebound but also led into a global trajectory via an Asia tour, confirms that 아이오아이 still holds a distinct resonance with the nation's producers and public. Attention is on how their future activities will unfold and what lasting records the narrative of '갑자기' and their live stages will leave.