I.O.I has officially set its comeback date. The group will return with a new release on May 19.

Swing Entertainment announced on April 21 that I.O.I will release its third mini album I.O.I: LOOP on May 19.

Comeback Countdown Begins

A scheduler for the new album has also been revealed. Set against a pink background, it teases various promotional content, including a mood film and album preview.

Ahead of the full release, the group will drop a pre-release track. A preview song and YouTube live broadcast are scheduled for May 4.

9-Year Reunion

I.O.I was formed through Produce 101 in 2016. The group debuted in May that year and released hits like "Very Very Very" and "Downpour."

The project concluded in 2017, just one year after debut. Now, marking their 10th debut anniversary, the members have reunited for the first time in approximately nine years.

Meanwhile, I.O.I will hold its concert "2026 I.O.I Concert Tour: LOOP" from May 29 to 31 at Jamsil Indoor Stadium in Seoul.