Tomorrowland (festival) Tomorrowland is an electronic dance music festival held in Boom, Belgium. Tomorrowland was first held in 2005, and has since become one of the world's largest and most notable music festivals. It now stretches over 2 weekends and usually sells out in minutes.
For a day pass it's €88 or $110 (Saturday sells out the fastest, usually). A Full Madness Tomorrowland pass is for all three days and is €237 or $282. Remember, you can only buy tickets for up to four people.