BOO! Seattle Music Festival returns to WAMU Theater in Seattle, Washington, on October 30–31, 2026, bringing Insomniac's Halloween celebration back for two nights of bass music, house, techno, and spooky festivities. Featuring three massive themed stages and more than 50 DJs and performers, the festival transforms the venue into a haunted world of electronic music and immersive production.
A Little Sound
AMP
AZYR
Beebo
Casey Club
Champion
CHYL
Clara Cuvé
Cloonee
Dansyn
DJ HEARTSTRING
Elderbrook
Fraze
Getter
Gramatik
Gravagerz
GRiZ
Hannah Laing
Hershe
It's Murph
James Hype
Jem.G
Joshwa
Junkie Kid
Kayzo
Leah York
Levity
LYNY
Morgan Seatree
OMNOM
Pedroz
Ravenscoon
Samplifire
Sara Landry
Space Laces
Subtronics
Taiki Nulight
Taylor Hadden
Taylor Torrence
The Masquerade
TroyBoi
USAYBFLOW
Vastive
Walker & Royce
Welker
Westend
Wuki
YDG
