Which I.O.I Member Was Behind The Group’s Long-Awaited Reunion?

A long-awaited reunion of I.O.I nearly a decade after their debut has fans asking one key question: Who made it happen?

As it turns out, the answer is Chungha!

During a recent appearance on Running Man, Chungha opened up about the behind-the-scenes effort that brought the beloved girl group back together for their 10th anniversary, revealing that she personally reached out to the members.

I was the one who made the calls. I asked them, ‘It’s our 10th anniversary! Are we really not going to do anything?!’

— Chungha

What might have seemed like a logistical challenge—given how each member has gone on to build individual careers across music, acting, and entertainment—ended up unfolding far more smoothly than expected.

Everyone responded right away. It all came together in one go. Everything was decided that same day!

— Chungha

Thanks to Chungha, we now have back one of K-Pop’s most iconic project groups making a return!

I.O.I 3rd MINI ALBUM
[I.O.I : LOOP]

𝐏𝐫𝐨𝐦𝐨𝐭𝐢𝐨𝐧 𝐒𝐜𝐡𝐞𝐝𝐮𝐥𝐞𝐫

♾️ 2026. 05. 19 TUE 6PM (KST)#아이오아이 #IOI #IOI_LOOP pic.twitter.com/nCPeGXfQAL

— 아이오아이 (I.O.I) (@ioi_10th) April 20, 2026

Read more about the comeback here:

Popular Girl Group Confirms Fandom Name After 10 Years, Sparks Massive Reactions