Countdown NYE’s 2026 lineup appears to have surfaced ahead of a full online lineup update from Insomniac. A photographed festival poster lists a wide-ranging group of electronic artists headed to the NOS Events Center in San Bernardino for the two-day New Year’s Eve celebration on December 31, 2026 and January 1, 2027.

The lineup was first reported online on September 19 after the poster was spotted onsite, revealing a bill led by Alesso, Subtronics, Seven Lions, DJ Snake, Marshmello, James Hype, Tchami and Oliver Heldens, alongside a substantial mix of house, bass and electronic artists.

Insomniac had already confirmed Countdown NYE’s return to San Bernardino earlier this year. Insomniac has also confirmed five covered stages, more than 75 artists, carnival rides, the Galaxy Mall and onsite afterparties for the two-day return.

Countdown NYE 2026 Lineup

The poster places some of electronic music’s most recognizable names alongside artists spanning bass music, house, tech house and techno.

House and Bass Share the Countdown NYE 2026 Lineup

Countdown has traditionally cast a wider musical net than Insomniac’s genre-specific festivals, and the apparent 2026 lineup continues that approach. Alesso, Seven Lions and Oliver Heldens are among the lineup’s most established festival names, while Subtronics, NGHTMRE, Space Laces and the LYNY B2B PEEKABOO pairing give the lineup a substantial bass presence.

House music also has a notable showing. James Hype and Tchami sit alongside Archie Hamilton, Walker & Royce, Wax Motif, Joshwa and Ranger Trucco, giving the festival a club-focused counterweight to its larger crossover and bass bookings.

Rinzen and DØMINA add techno-oriented programming, while TOKiMONSTA, Taiki Nulight, BUNT. and KLOUD further broaden the musical range of the festival.

Countdown Returns to San Bernardino

The 2026 edition marks Countdown’s return to the NOS Events Center after the previous edition moved to Downtown Los Angeles. Insomniac has positioned the San Bernardino return as a two-day festival once again, with the alien-themed production and multiple stages that have defined Countdown over the past decade.

The festival is currently listed by Insomniac for December 31 and January 1 in San Bernardino.

What Happens Next

While the photographed poster provides the clearest look yet at the 2026 artist roster, the unusual rollout means there is still a distinction between the lineup appearing physically and Insomniac completing its normal online lineup presentation.

Fans should watch Countdown’s official channels for the finalized web lineup, artist-by-day breakdowns, set times and afterparty information as New Year’s Eve approaches.