Three leading girl groups unite for a special project
LE SSERAFIM, ILLIT, and KATSEYE are preparing to release a new collaborative single titled “ICONIC BY MISTAKE.” The track is scheduled to arrive on June 12, 2026, and has already generated excitement among the three fandoms (FEARNOT, GLITT, and EYEKONS, respectively). The song brings together three of the most recognized girl groups of the current generation, each known for their own style, music, and growing international fanbases.
'ICONIC BY MISTAKE'
JUNE 11 @ 9PM PT | JUNE 12 @ 12AM ET#ICONICBYMISTAKE#KATSEYE #LE_SSERAFIM #ILLIT pic.twitter.com/FjOEaA9TFF— KATSEYE (@katseyeworld) June 7, 2026
In addition, it is a rare event to see three major groups come together for a single release. For these reasons, the announcement marks a standout moment for fans of all three girl groups. A brief teaser accompanied the announcement, showing the song’s cover art over a piano melody and a digitized voice that vocalizes the song’s title. In addition, an official schedule was unveiled, including concept photos, a video premiere, and confirmed performances.
'ICONIC BY MISTAKE' Promotion Scheduler
Pre-save :https://t.co/y7r2DUiHuB
📆 Schedule
Official MV Teaser
JUNE 9, 12AM KST | JUNE 8, 8AM PT / 11AM ETConcept Photo
JUNE 10, 12AM KST | JUNE 9, 8AM PT / 11AM ETOfficial MV
JUNE 11, 12AM KST | JUNE 10, 8AM PT / 11AM ETMnet M… pic.twitter.com/spf1iuZ7eP
— SOURCEMUSIC (@SOURCEMUSIC) June 7, 2026
A strong team with solid collaborators
According to information on Internet fan sites, “ICONIC BY MISTAKE” was registered to ASCAP in May 2026. The track has songwriting credits by Justin Tranter, who also contributed to other KATSEYE songs like Tonight I Might, Mean Girls, Internet Girl, and Pinky Up; Alice Gao, who wrote Gnarly; and Madison Love, who has worked with artists like Lady Gaga and BLACKPINK. This brings a mix of well-known talents to the song, along with a fresh spin and new ideas for the upcoming track.
The release could become one of the season’s biggest collaborations
This collaboration between LE SSERAFIM, ILLIT, and KATSEYE is already being viewed as one of the most talked-about music collaborations of the summer. All three groups have recently released some of their most upbeat and electronic works to date, with ILLIT dropping “IT’S ME,” LE SSERAFIM releasing “CELEBRATION,” and KATSEYE unveiling “Pinky Up.” All these tracks have brought fans right to the dancefloor, and fans are eager to see how the groups combine their strengths in what promises to be a bombastic dance song.
