Miami hosted the 2010 version of the Ultra Music Fest on March 26-27, featuring more than 250 of the world's top electronica artists on 16 stages, including the Crystal Method, Deadmau5, Orbital, Groove Armada, Tiesto, Paul Okenfold, and Swedish House Mafia -- plus crossover artists like Passion Pit, Damian Marley, will.i.am., and Little Boots (above).
The sold-out fest drew some 100,000 fans, many of them dressed in outrageous costumes and working their best moves on the crowded dance floors.
To see the best of the fest, click through our exclusive gallery, shot by SPIN's intrepid photog in Miami, Ian Witlen.
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