LE SSERAFIM Makes iHeartRadio History, Meets BTS and Tops K-POPIT Board

LE SSERAFIM has ranked No. 1 on both the domestic and global charts of K-POPIT BOARD, following a run of major U.S. appearances and promotions for its latest single.

According to K-POPIT BOARD data as of Sept. 21, the group's global momentum score, MOM(GL), stood at 65.5, while its overall global influence index, PWR(GL), reached 65.0.

On Sept. 19 local time, LE SSERAFIM performed at the 2026 iHeartRadio Music Festival at T-Mobile Arena in Las Vegas. The group became the first K-POP girl group to perform at the festival stage, delivering a roughly 30-minute set featuring "Made My Night," "BOOMPALA," "ICONIC BY MISTAKE," "SPAGHETTI (feat. j-hope of BTS)" and "CRAZY."

A photo of the group with fellow HYBE act BTS also drew attention online. Both groups appeared in this year's festival lineup, and their meeting gave fans a rare look at two leading K-POP acts together.

The festival appearance continued LE SSERAFIM's recent push in the United States. The group premiered "Made My Night" at BlizzCon 2026 on Sept. 13 and opened the U.S. leg of its "PUREFLOW" tour at Crypto.com Arena in Los Angeles three days later. Within one week, the group reached different audiences across the U.S. through a gaming convention, a solo arena concert and a major music festival.

The new single also boosted the group's presence on the Korean chart. LE SSERAFIM recorded a domestic overall influence score, PWR(KR), of 72.9 and a domestic momentum score, MOM(KR), of 68.6. Its prerecorded performance of "Made My Night" aired on SBS music program "Inkigayo" on Sept. 21.

The D-tier, which represents the general public, rose 30.6 percent. The group's fandom health indicator, FHI, stood at 77.9, showing that broader public interest grew alongside support from its established fanbase.

LE SSERAFIM performed the second U.S. show of its "PUREFLOW" tour at the Tacoma Dome on Sept. 20. The group will continue its tour with stops in San Jose, Phoenix, Fort Worth, Orlando, Chicago, Washington, D.C., and Newark through Oct. 8.