I.O.I's Kim Doyeon and Jung Chaeyeon go viral for their stunning visuals at a recent fan sign

I.O.I's special anniversary comeback is continuing to draw attention - this time for the members' dazzling visuals.

On May 24, I.O.I held a special fan sign, greeting fans for their 10th anniversary as a group. The legendary girl group captivated fans with their striking beauty as usual, but two members in particular gained attention across social media. 

Kim Doyeon and Jung Chaeyeon immediately drew attention for their intense beauty and chemistry together. Dressed in simple black-and-white outfits, Doyeon and Chaeyeon's perfect visuals and confident attitudes stole the spotlight.

260524 상견니 도채#김도연 #정채연#아이오아이 pic.twitter.com/0kqIyVPrNO

— 은댕🌻🦋 (@daeng_1112) May 25, 2026

想見你只想見你
未來過去我只想見你#정채연 #김도연 #아이오아이 pic.twitter.com/BPQrQjGQ2U

— 젤리초코 (@jellyjellychu) May 24, 2026

Chaeyeon and Doyeon received positive attention across social media, as netizens praised their timeless visuals and captivating chemistry together.

"Their visual chemistry is insane"

"I feel like my eyes have been cleansed just from looking at this"

"Wow....."

"A whole web novel could be created just from them standing there together like that; their visual chemistry is legendary"

"It's crazy how stunning they both are"

"Both of them... wow, wow"

"You could make a K-drama just from this"

"Wow, this combination is the absolute best"

"Their visuals blend together so perfectly"

"If I.O.I were a permanent idol group in today's generation, this lineup would have absolutely crushed it"

"They're drop-dead gorgeous"

"Their facial harmony is insane!!"

"I wish they'd continue being active as idols every once in a while"

"Please, keep being idols!!!"