Over 100,000 people from all over the U.S. and abroad attended the 13th Annual Ultra Music Festival last weekend in Miami.The sold-out festival kicked off Friday, March 25 in downtown Miami’s Bicentennial Park and featured over 300 DJs, bands and producers. Attendees wearing assortments of neon and unusual party getup danced to their favorite dubstep and electronic beats at one of the park’s eight different stages surrounded by downtown buildings and the scenic Miami waterfront.

The festival’s three headliners, DJ Tiesto, Deadmau5 and The Chemical Brothers appeared at the festival’s main stage and drew in large crowds. Other notables were Rusko, Skrillex, ATB, The Disco Biscuts, Skream, Nero, STS9, Wolfgang Gartner, The Glitch Mob, Boys Noize, Crystal Castles, Steve Aoki, Conspirator and Empire of the Sun.

The festival’s vast number of attendees were felt during DJ Tiesto and Deadmau5’s sets where it was almost impossible to push through the deadlocked crowds to move closer and to find some, if any, dacning room. Smaller stages like the Tower of Ultra and the Root Society Dome yielded smaller crowds, shorter bathroom lines and room to breathe. The record attendance caused a two-hour line of people just to enter the festival at one point during the weekend.

Because of Ultra Music Festival’s increasing popularity since it first started in 2000, the 2011 festival was extended to three days when it had been only a two-day event in the past.