The third rendition of this internationally successful independent electronic music festival brings big-name house music acts like deadmau5, Martin Garrix, and Dubfire as well as other substantial offerings. This year’s lineup includes marshmello, the mysterious DJ and producer who performs and appears in all his videos in a giant white marshmallow mask with Halloween eyes. Launched in Miami in 1999, the ULTRA festival has rightly been a huge hit for every year of its unbroken 18-year run, with a mix of high-tech production and careful curation of talent. Since its birth in Tokyo in 2014, the festival’s success has been apparent in the huge crowds it draws and its sold-out shows. Go neon or go home!