LE SSERAFIM, ILLIT and KATSEYE have turned their cross-label single ICONIC BY MISTAKE into a genuine shared win on the Billboard Hot 100, not just a one-week stunt.
The three-group collab debuted in the top 40, then held its ground in week two, giving the unit fans call “LeAKat” one of 2026’s strongest K-pop girl group performances in the United States so far.
The Hot 100 Breakthrough for ICONIC BY MISTAKE
Released on June 12, ICONIC BY MISTAKE arrived on the Hot 100 at No. 38, a higher debut than most K-pop entries and a new career peak for both LE SSERAFIM and ILLIT. On the chart dated July 4, it kept its U.S. foothold at No. 43.
That two-week top 50 run makes it the highest charting K-pop girl group release of 2026 to date. At the same time, the collab has been quietly stacking global receipts, proving this is not only an American story.
The single opened around No. 25 on the Billboard Global 200 and near No. 22 on Global Excluding U.S., and it remains in the low 20s in its second week. In the United Kingdom, it debuted at No. 22 on the Official Singles Chart and has entered Spotify’s Weekly Top Songs chart in 46 regions.
- Hot 100: No. 38 debut, No. 43 in week two
- Billboard Global 200: mid 20s, holding near the top 25
- Billboard Global Excluding U.S.: around No. 22
- UK Official Singles Chart: No. 22 debut
A Rare Three Label Girl Group Superunit
Full group collaborations across different K-pop labels are already unusual. What makes this one stand out is that all three teams are under separate HYBE sub labels: Source Music for LE SSERAFIM, Belift Lab for ILLIT and HYBE x Geffen for KATSEYE.
The project was built as real multi-label teamwork, with Belift Lab leading performance production, Source Music steering visuals and HYBE x Geffen handling A and R. The music video features members from all three groups together, and the superunit has performed the track on Korean music shows as one massive lineup.
This is KATSEYE’s fifth Hot 100 entry, but only the second for ILLIT and fourth for LE SSERAFIM, and now their highest placement. For U.S. listeners, KATSEYE’s American base, Grammy nominations off Gnarly and festival slots at Coachella and Governors Ball help pull LE SSERAFIM and ILLIT deeper into mainstream pop discovery algorithms.
What This Multi Group Win Signals for HYBE and U.S. K-pop
ICONIC BY MISTAKE lands amid a wider HYBE surge on Billboard, with multiple label mates occupying the charts at the same time. LE SSERAFIM already arrived with momentum after their studio album Pureflow Pt. 1 debuted at No. 10 on the Billboard 200.
ILLIT came in as the newest name, carrying a Hot 100 story from their 2024 breakout Magnetic, which peaked at No. 91. KATSEYE brought established U.S. visibility, so the single effectively combines three different fanbases and career stages into one chart line.
For American K-pop fans, the success of “Iconic By Mistake Billboard Hot 100” searches signals more than a catchy hook. If this rare three-group experiment continues to hold or climb, it strengthens the case for future girl group superunits and more ambitious cross-label collaborations targeting the global charts.