Ultra Music Festival (UMF) is an annual outdoor electronic music festival that occurs in March in the city of Miami, Florida, United States. The festival coincides with the annual Winter Music Conference, also held in Miami. Since expansion to 2 weekends in 2013, however, the two Ultra weekends are held on the weekends that begin and end WMC. Ultra is held in Downtown Miami in Bayfront Park. It was a one-day festival from 1999 to 2006, a two-day festival from 2007 to 2010, and was a three-day festival in 2011 to 2012. In 2012, a record 55,000 people per day attended the festival. In 2013, for the first time in festival history, UMF took place across two consecutive weekends. In 2014, the festival will returned to a one-weekend format. Other Ultra festivals are held in Ibiza, Spain; Buenos Aires, Argentina; SÃ£o Paulo, Brazil; Santiago, Chile; Seoul, South Korea; Cape Town and Johannesburg, South Africa, Split, Croatia and Hvar, Croatia. In December, 2013 Ultra Worldwide announced to first edition of the festival in BogotÃ¡, Colombia. Although they share names, UMF was not directly tied to Ultra Records, an electronic music record label. However, the two entities did announce a \\\\\\\"global alliance\\\\\\\" in August 2012, which would allow them to collaborate on marketing and cross-promotion.