The 2026 iHeartRadio Music Festival is now just days away, with BTS billed for Friday, September 18 and LE SSERAFIM set for Saturday, September 19 at T-Mobile Arena in Las Vegas. The two-night event begins at 7:30 p.m. PT each night, and iHeartMedia says every performance will be livestreamed on Disney+ and Hulu while the festival is also broadcast live across iHeartMedia radio stations in more than 150 U.S. markets.
For K-pop fans, the schedule creates a rare two-night spotlight: BTS is on Friday’s billing alongside Cardi B, Goo Goo Dolls, Kenny Chesney, Weezer and Zara Larsson, while LE SSERAFIM joins Saturday’s lineup with Benson Boone, Ciara, Lainey Wilson, Major Lazer, Muse, Snoop Dogg, The Smashing Pumpkins and a special performance by Stella Lefty. The venue and iHeartMedia both note that the lineup remains subject to change.
iHeartRadio Music Festival 2026: BTS and LE SSERAFIM Schedule
| Date | K-pop act | Venue | Start time |
|---|---|---|---|
| Friday, Sept. 18 | BTS | T-Mobile Arena, Las Vegas | 7:30 p.m. PT |
| Saturday, Sept. 19 | LE SSERAFIM | T-Mobile Arena, Las Vegas | 7:30 p.m. PT |
T-Mobile Arena lists doors at 6:30 p.m. on both nights, with the main event beginning at 7:30 p.m. The official venue page also separates the festival billing by night, which is important because the broader iHeartMedia announcements often present the lineup as one combined two-day list.
Friday’s official billing includes BTS, Cardi B, Goo Goo Dolls, Kenny Chesney, Weezer and Zara Larsson. Saturday’s billing includes Benson Boone, Ciara, Lainey Wilson, LE SSERAFIM, Major Lazer, Muse, Snoop Dogg, The Smashing Pumpkins and a special performance by Stella Lefty.
How to Watch BTS and LE SSERAFIM From Home
Fans who cannot attend in Las Vegas still have official ways to follow the festival. iHeartMedia’s September 11 viewing guide says the live broadcast begins at 7:30 p.m. PT / 10:30 p.m. ET on both Friday and Saturday.
Disney+ and Hulu are the official streaming destinations for the 2026 festival, with iHeartMedia stating that subscribers will be able to livestream all of the performances. Streaming availability can vary by market and subscription, so viewers outside the United States should check the local Disney+ or Hulu service before relying on the stream.
The audio broadcast will also air live through iHeartMedia radio stations across more than 150 U.S. markets. Fans can additionally use the iHeart app or web service to find festival radio coverage where available.
Watch the Official iHeartRadio 2026 Festival Lineup Video
iHeartRadio’s verified YouTube channel released an official lineup video when the festival was announced in June. The clip confirms BTS as part of the lineup and highlights the Las Vegas dates, T-Mobile Arena venue and official streaming plan.
Watch the official iHeartRadio festival lineup video on YouTube
LE SSERAFIM was added to the lineup later in June, so the original iHeartRadio YouTube announcement does not yet list the group in its first lineup description. iHeartMedia’s subsequent official announcement, however, confirms LE SSERAFIM as part of the two-day festival, and T-Mobile Arena’s current billing places the group on Saturday, September 19.
Why BTS on Friday Is a Major Draw
BTS appears on the Friday night billing, placing the group in a genre-mixing lineup that also includes Cardi B, country star Kenny Chesney, alt-rock veterans Goo Goo Dolls and Weezer, and pop artist Zara Larsson. That cross-genre format is central to the iHeartRadio Music Festival, which has traditionally built short, high-impact sets around artists from different parts of the music industry rather than organizing the event around a single genre.
For BTS, the Las Vegas appearance comes during another active period of U.S. visibility. KWaveScope has recently covered the group’s broader 2026 touring activity, including BTS’s 2026 South America tour schedule and the group’s U.S. stadium-scale performance record. The iHeartRadio Music Festival is different from a dedicated BTS tour stop because the group shares the night with multiple major artists and performs within a festival format.
That distinction also matters for expectations. Fans should not assume the length, production scale or set list will match a full BTS stadium concert. As of this article’s latest check, the festival and venue have confirmed the billing and schedule, but they have not published a complete BTS set list in advance.
BTS Also Gets a Dedicated House of Music Experience
Beyond the main stage, iHeartMedia is bringing back its House of Music presented by Hyundai outside T-Mobile Arena on September 18 and 19. The free public experience includes artist-inspired immersive rooms dedicated to BTS, Cardi B, Kenny Chesney and Zara Larsson.
iHeartMedia says the House of Music will be open from 4 p.m. to 1 a.m. PT on both nights and does not require a festival ticket. For BTS fans already in Las Vegas, that gives the weekend an additional official fan experience even before the Friday main-stage performance begins.
The House of Music should not be confused with the main concert inside T-Mobile Arena. It is a separate mixed-reality fan activation located outside the arena, while the festival performances require event admission.
Why LE SSERAFIM’s Saturday Set Matters
LE SSERAFIM was officially added to the iHeartRadio Music Festival lineup on June 30. The group appears on Saturday’s billing alongside Benson Boone, Ciara, Lainey Wilson, Major Lazer, Muse, Snoop Dogg and The Smashing Pumpkins.
The timing is especially notable because LE SSERAFIM has entered September with new music and a busy U.S. promotional schedule. The group’s second single album Made My Night was released in September, giving the Las Vegas appearance extra relevance during the group’s current promotional cycle.
KWaveScope previously covered the group’s “Made My Night” September comeback. That makes the September 19 festival set one of the first major U.S. festival opportunities to see how the new era translates to a large mixed-genre audience.
Watch LE SSERAFIM’s Current Era on YouTube
For fans catching up before the festival, LE SSERAFIM’s official YouTube channel has been rolling out content for Made My Night. The official album video below was released ahead of the single album and links directly to the group’s current promotional cycle.
Watch LE SSERAFIM’s official “Made My Night” video on YouTube
Official Instagram Festival Post and Reels
iHeartRadio is also promoting the festival through its official Instagram account. The post below links to iHeartRadio’s current BTS-related festival promotion, while the Reels link beneath it opens the official short-form video feed where the festival account is posting ongoing event content.
Open the official iHeartRadio festival post on Instagram
Watch current iHeartRadio Festival Reels on the official Instagram account
Because Instagram posts and Reels can be edited, removed or geo-restricted, KWaveScope treats the iHeartMedia and T-Mobile Arena pages as the primary sources for schedule and lineup facts. Social posts are used here as supplementary event content rather than the sole basis for factual claims.
What the Full 2026 Lineup Looks Like
As of the latest official iHeartMedia update, the two-night festival lineup includes BTS, Benson Boone, Cardi B, Ciara, Goo Goo Dolls, Kenny Chesney, Lainey Wilson, LE SSERAFIM, Major Lazer, Muse, Snoop Dogg, The Smashing Pumpkins, Weezer and Zara Larsson, plus a special performance by Stella Lefty. Ryan Seacrest returns as host.
The range is unusually broad even by festival standards: K-pop shares the bill with country, hip-hop, classic and alternative rock, electronic music and mainstream pop. That format can expose BTS and LE SSERAFIM to audiences who may not normally attend a dedicated K-pop concert, while also giving K-pop fans a reason to watch artists from outside the genre.
What Fans Should Know Before Going to T-Mobile Arena
- Venue: T-Mobile Arena, 3780 S Las Vegas Blvd, Las Vegas, Nevada.
- Doors: 6:30 p.m. PT on both September 18 and 19.
- Show: 7:30 p.m. PT both nights.
- Friday K-pop billing: BTS.
- Saturday K-pop billing: LE SSERAFIM.
- Official ticketing: AXS is listed as the official ticketing partner.
- Remote viewing: Disney+ and Hulu are the official livestream destinations announced by iHeartMedia.
Fans traveling to Las Vegas should recheck the event page before leaving for the arena. Lineups, timing and access details can change, and iHeartMedia specifically notes that artists or the event itself are subject to change or cancellation without notice.
iHeartRadio Music Festival 2026 FAQ
When does BTS perform at the 2026 iHeartRadio Music Festival?
T-Mobile Arena lists BTS on the Friday, September 18 billing. The event begins at 7:30 p.m. PT, with doors scheduled for 6:30 p.m.
When does LE SSERAFIM perform?
LE SSERAFIM is listed on the Saturday, September 19 billing. The main event begins at 7:30 p.m. PT.
Can fans watch the festival online?
Yes. iHeartMedia says Disney+ and Hulu will livestream all performances. Subscribers should confirm local availability before the event.
Will the festival be on the radio?
Yes. iHeartMedia says both nights will be broadcast live through iHeartMedia radio stations across more than 150 U.S. markets.
Is BTS performing on the same night as LE SSERAFIM?
No. The official T-Mobile Arena billing places BTS on Friday and LE SSERAFIM on Saturday.
Is the BTS House of Music experience free?
Yes. iHeartMedia says the House of Music outside T-Mobile Arena is free and open to the public from 4 p.m. to 1 a.m. PT on both festival days. It is separate from the ticketed arena concert.
Why This Weekend Is Worth Watching
The significance of the weekend is not simply that two Korean acts appear on the same festival poster. BTS and LE SSERAFIM are being placed on separate nights inside one of iHeartMedia’s biggest annual live events, each surrounded by major artists from other genres.
For BTS, Friday offers another major U.S. stage in a mixed-genre festival setting. For LE SSERAFIM, Saturday arrives during a new-release period and a broader push into the U.S. market. Together, the two appearances show how K-pop is increasingly being programmed not as a separate category but as part of mainstream American festival lineups.
The most important details are already confirmed: T-Mobile Arena, September 18 and 19, BTS on Friday, LE SSERAFIM on Saturday, a 7:30 p.m. PT start each night, Disney+ and Hulu livestreaming, and live iHeartMedia radio coverage across more than 150 markets. Everything beyond that — exact set lists, surprise collaborations and special stage moments — should remain unconfirmed until the festival actually happens.
Sources
- iHeartRadio — 2026 iHeartRadio Music Festival: How To Watch & Listen
- iHeartMedia — LE SSERAFIM joins the 2026 festival lineup
- T-Mobile Arena — 2026 iHeartRadio Music Festival schedule and billing by night
- iHeartRadio — House of Music 2026 details
- iHeartRadio Official YouTube — 2026 festival lineup video
- LE SSERAFIM Official YouTube — Made My Night
Information checked and cross-verified on September 15, 2026. Festival artists, timing, ticket availability and streaming access may change, so fans should confirm the latest official information before watching or traveling.