I.O.I Is Back: Jeon Somi and the Full Lineup Return to 'Knowing Bros' After 10 Years

A decade ago, seven young women walked off the stage of Mnet's "Produce 101" as the members of I.O.I — and immediately became one of the most beloved K-pop groups of their generation. Now, ten years later, all seven are reuniting. And in a moment that feels perfectly designed for the fans who have been waiting, I.O.I is returning to "Knowing Bros" — the very same variety show they appeared on as their final group performance before disbanding in 2016.

JTBC officially confirmed on April 30 that I.O.I members Lim Na-young, Chungha, Kim So-hye, Yoo Yeon-jung, Choi Yu-jung, Kim Do-yeon, and Jeon Somi are scheduled to appear on the network's beloved talk-comedy show in May 2026. The announcement sent fans into an immediate frenzy — and for good reason.

From One Stage to Seven Stars

I.O.I debuted in May 2016 after the first season of "Produce 101," one of the most watched idol competition shows in Korean broadcasting history. The group's formation was defined by the public's direct voting — fans chose each member — which created an unusually passionate bond between the group and its audience from the very first day.

They had one year together. In that time, they released songs including "Dream Girls," "Very Very Very," and "Whatta Man" — tracks that became anthems for a generation of K-pop fans. Their 2016 appearance on "Knowing Bros" before disbanding was emotionally charged, with the group and the show's regulars visibly moved by the impending goodbye.

What happened next validated the industry's belief that "Produce 101" had assembled genuinely exceptional talent. Each member went on to build a significant individual career:

• Chungha became one of Korea's most consistent solo artists, known for her powerful stage presence and hits like "Gotta Go" and "Killing Me." She has toured globally and is regularly cited as one of the defining solo performers of her generation.
• Jeon Somi signed with The Black Label (YG's creative subsidiary), releasing "Birthday" and "XOXO" to massive commercial success. She has become one of the most recognizable solo idol personalities in Asia.
• Lim Na-young went on to activities across music and entertainment, maintaining a loyal fanbase over the decade.
• Kim Do-yeon became a member of Cosmic Girls (WJSN) before also pursuing solo work.
• Choi Yu-jung similarly joined Cosmic Girls, where she remained a key member.
• Kim So-hye transitioned into acting, building a steady presence in Korean dramas.
• Yoo Yeon-jung continued her career in music and variety content.

The "Knowing Bros" Connection

"Knowing Bros" (also known as "Ask Us Anything") holds a special place in this reunion story. The JTBC show — where the cast members play high school students and celebrity guests appear as transfer students — has been one of Korean variety TV's most enduring and beloved programs since 2015. Its warm, nostalgic energy and the chemistry between its ensemble cast has made it the perfect setting for emotional reunions.

When I.O.I appeared on "Knowing Bros" in 2016 for their farewell variety appearance, it became one of the show's most memorable episodes. The girls' playful interactions with the cast, their openness about saying goodbye, and the genuine sadness of a group with so much potential disbanding after just one year resonated with viewers in a way that few entertainment moments do.

JTBC noted in their announcement: "We hope this will be a meaningful time not just for the members who have been together again after a long time, but also for the fans who have waited so long for I.O.I."

Ten Years of Stories to Tell

The 10th anniversary reunion appearance carries a specific emotional weight that a standard celebrity guest slot rarely achieves. Each of the seven members has lived a decade of experiences, career turns, personal growth, and challenges since that final "Knowing Bros" goodbye. When they sit down together again — now as established veterans of the Korean entertainment industry rather than the bright-eyed rookies they were in 2016 — the conversation is likely to be extraordinary.

Chungha alone has enough material for a full episode. Her decade includes chart-topping hits, an impressive global touring career, and the kind of artistic evolution that comes from building a solo identity from scratch after a group disbandment. Jeon Somi — who debuted at age 15 with I.O.I — is now 25, with a major solo career and a devoted international following built entirely on her own terms.

The seven women returning to a setting they last visited as a group in their final weeks together will inevitably produce moments that are both funny and deeply moving. "Knowing Bros" is particularly good at creating space for this kind of sincerity within its comedy format.

What the Reunion Means for K-Pop

I.O.I occupies a special category in K-pop history. They were not a traditional agency-formed group with a long training period and carefully managed debut. They were assembled by public vote, given one year, and then released — each member returning to whatever career path lay ahead. This structure, combined with their genuine talent and chemistry, created one of the most beloved temporary groups in the genre's history.

Their 10th anniversary reunion arrives at a moment when "Produce 101" itself has become a cultural artifact — a show that launched not just I.O.I but also Wanna One, IZ*ONE, and multiple individual careers that shaped an entire era of K-pop. Looking back at I.O.I now is to look back at the beginning of something that transformed the industry.

The "Knowing Bros" appearance is scheduled for May 2026. I.O.I reportedly has additional anniversary activities planned, with May 19 appearing in scheduling announcements. For fans who spent the last decade watching each member's solo career while quietly hoping for a reunion, the wait is finally over — and "Knowing Bros" may just be the first stop on a longer journey together.