BOO Seattle Drops Off Headliners and On-Sale Info for 2026 Edition

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GRiZ and Subtronics will make their way back up to the Pacific Northwest this fall to headline the upcoming edition of BOO Seattle at WAMU Theater.

Halloween always brings spooky events for dance music lovers across the country, and Insomniac has been dominating the Pacific Northwest in recent years. BOO Seattle, the behemoth brand’s annual spooky soiree in the region, has offered a fantastic experience for ravers looking to get their fix. The upcoming edition, which is slated to return to WAMU Theater on October 30-31, is shaping up to be another wicked weekend.

This year, BOO Seattle will turn five, and Insomniac has promised a larger-than-life lineup with over 45 artists slated to play. While the full list of artists performing at the festival will be rolled out in the coming months, the first two to be announced will surely turn the heads of bass music lovers in the region. Fresh off their recent adventure to The Gorge Amphitheatre just a few hours East this past weekend, GRiZ and Subtronics will make their return to the region on Halloween weekend as two of the festival’s headliners.

GRiZ has roared back into the scene after taking a hiatus, making his mark from coast to coast with festival appearances, while also treating fans to some fresh releases for them to feast their ears on. Meanwhile, Subtronics has further proved his dominance with standout sets at festivals like Coachella and EDC Las Vegas, not to mention curating his own events across the country.

Further details surrounding the upcoming edition of BOO Seattle, including the full lineup, stage programming, on-site vendors, and more, will be revealed in the coming months. Previous years have featured top names in the scene and rising stars alike, so stay tuned for the complete list of artists to be unveiled; there might just be some surprises in there for the anniversary!

Two-day GA and VIP passes for BOO Seattle 2026 go on sale Thursday, May 28, at 11am PT. Head to the Front Gate to make your purchase, and stay tuned for the full lineup dropping in the coming months.