On May 6, the first teaser for I.O.I’s comeback track “Suddenly” was unveiled, instantly drawing attention for its bold and unexpected concept. In the 16-second clip, Kim Doyeon appears leaning against a wall, dressed in a contrasting-toned outfit, when Jeon Somi suddenly approaches her—and without warning, plants a quick kiss on her.
What truly shocked viewers, however, was the sudden kiss. In the teaser, Somi approaches Doyeon—who is leaning against a wall—and unexpectedly plants a quick kiss on her, leaving Doyeon visibly stunned as she covers her mouth and drops to the floor.
The unexpected scene immediately triggered explosive reactions online. Comments flooded social media with fans saying, “Did I really just see that?”, “The title ‘Suddenly’ fits perfectly,” and “This comeback is insane already.”
The buzz only intensified given that both idols recently shared stories about past misunderstandings during their active days on No But Seriously, making the teaser feel even more layered. Some fans even speculated that their earlier story might have been a subtle spoiler for the concept.

Following the teaser’s viral spread, Kim Doyeon revealed surprising behind-the-scenes details. According to her, the kiss scene was actually her own idea. “You might not believe it, but I came up with it,” she shared, adding that the team filmed multiple takes to perfect the moment.
She also revealed that the original concept was completely different. “The reference was a cute slap on the cheek, but we changed it to a kiss. Let’s kiss instead of hitting each other,” she explained. When asked about Somi’s reaction, Doyeon responded casually, “There’s no such thing as being shocked for us.” She even joked, “She kissed really hard,” drawing laughter from fans.





Netizens largely agreed that the change was a smart move, with many commenting that a slap could have sparked negative reactions, while the kiss felt more fitting and even “cuter.”
With just a brief teaser, I.O.I has already captured massive attention, proving their comeback is far more than just a nostalgic reunion. The group is set to release I.O.I : LOOP on May 19, and anticipation is rapidly building for what could be one of the most talked-about K-pop comebacks of the year.
Sources: 네이트 뉴스

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