Biggest EDM festivals in the world Tomorrowland, Belgium. Taking place in Belgium Tomorrowland is the largest electronic music festival held in the world. Electric Daisy Carnival, United States. Sensation, Amsterdam. Ultra Music Festival, Miami. Global Gathering, UK. Electric Zoo, United States. Stereosonic, Australia. Ozora Festival, Hungary. Click to see full answer. Also question is, what’s the biggest festival in the world?Milwaukee, Wisconsin’s 11-day event, Summerfest, promotes itself as “The World’s Largest Music Festival”, a title certified by the Guinness World Records that has been held since 1999. Operating annually since 1968, the festival attracts between 800,000 and 1,000,000 people each year, and hosts over 800 musical acts.Also, what is the biggest music festival in the United States? Summerfest Just so, is EDC the biggest music festival? Electric Daisy Carnival, commonly known as EDC, is the largest electronic dance music festival in North America. The annual flagship event is now held in May, at the Las Vegas Motor Speedway.Is Glastonbury the biggest festival in the world?Glastonbury Festival is the largest greenfield music and performing arts festival in the world and a template for all the festivals that have come after it.