Tomorrowland Belgium returns to Boom, Belgium from July 17-26, 2026, featuring an impressive lineup of 626 artists spanning house, electronic, techno, pop, and EDM genres. The festival showcases top-tier headliners including Calvin Harris, David Guetta, Afrojack, Hardwell, Steve Aoki, Fisher, Amelie Lens, and I Hate Models. With artists representing 24 countries including the United Kingdom, Netherlands, United States, Germany, France, and Brazil, this 10-day electronic music festival offers one of the most diverse international lineups in the EDM scene. The extensive artist roster and global representation make Tomorrowland Belgium a premier destination for electronic music fans seeking world-class performances across multiple dance music subgenres.