The IOI LOOP tracklist is finally here, and it gives fans a clear first look at how I.O.I is shaping its long-awaited return. The group revealed the tracklist for its third mini album, I.O.I : LOOP, through official social media at midnight on April 27, 2026. The album includes credits for a total of six songs, with the title track confirmed as Suddenly, a synth-pop song featuring lyrics participation from Jeon Somi. For a reunion project carrying both 10th-anniversary meaning and comeback anticipation, the tracklist feels like an important signal of what this era is meant to represent.
IOI LOOP tracklist: Six Songs and a Confirmed Title Track

The centerpiece of I.O.I : LOOP is Suddenly, now confirmed as the album’s title track. The song has been introduced as synth-pop, with a mood connected to longing. That detail matters because it suggests the comeback is not only about energy or nostalgia, but also about emotional memory. For a group returning after many years, a song built around longing feels especially fitting.
Jeon Somi’s name appears in the lyric credits for Suddenly, making her participation one of the biggest talking points around the release. Her involvement gives the title track a direct member connection, which is exactly the kind of detail fans tend to notice first. In a reunion album, member participation can make the project feel less like a simple comeback and more like a personal return.
The tracklist contains six credited songs in total. Among the included tracks are IOI (Where My Girls At), IF I, and Geuttae Uri Jigeum, which can be naturally understood in English as Back Then, Us Now. The available tracklist information highlights these songs in particular because they also connect to member participation.
Member Participation Adds Meaning to I.O.I : LOOP
One of the warmest parts of the I.O.I : LOOP reveal is the way members appear across the album credits. Jeon Somi participated not only in the title track Suddenly, but also in work related to IOI (Where My Girls At). Yoo Yeonjung is credited with participation on IF I, while Chungha is listed in connection with Back Then, Us Now.
That does not tell us everything about the album yet, but it does tell us something important: this comeback is being presented with the members’ own creative presence woven into the music. For longtime listeners, that can make the release feel more intimate. You are not just seeing a group name return; you are seeing members leave their marks on songs that belong to this specific chapter.
The album itself has been described as a new release carrying the meaning of I.O.I’s 10th anniversary and reunion. That framing gives the title LOOP extra resonance. Based only on the confirmed details, the word can be read as part of the comeback’s emotional language: a return, a circle, or a moment that reconnects the group with the time and fans that shaped its story. The track titles also seem to lean into that feeling, especially Back Then, Us Now, which directly points toward memory and the present moment.
Comeback Schedule Builds Toward the May 19 Release
I.O.I is set to release its third mini album, I.O.I : LOOP, on May 19, 2026. Before that, the group’s comeback schedule includes several promotional steps: mood film, concept photos, the tracklist, album preview, music video teaser, and audio snippet releases.
The group has also announced a pre-release digital single and a YouTube live event for May 4, 2026. That gives fans another date to watch before the full album arrives. With the tracklist already out, the next stages of the rollout should help listeners understand the album’s sound, visuals, and overall mood more clearly.
What is available now is still focused on credits and basic song information, so it is too early to describe the full musical direction of all six tracks. The confirmed facts, however, already create a strong outline. Suddenly leads the album as the title song. It is synth-pop. It expresses longing. Jeon Somi participated in the lyrics. The album has six songs. Member names appear across key tracks. And the project is tied to both a reunion and a 10th-anniversary moment.

For fans, the IOI LOOP tracklist is more than a list of songs. It is the first detailed map of a comeback built around reunion, memory, and member participation. With Suddenly now confirmed as the title track and I.O.I : LOOP scheduled for May 19, 2026, the countdown has moved into a much clearer and more exciting stage.