Electric Daisy Carnival

More than 130,000 people poured through the gates of the Las Vegas Motor Speedway each night of the weekend-long Electric Daisy Carnival, a dazzling, multi-sensory ode to electronic dance music.

But tragedy also marked the festival. Montgomery Tsang of San Leandro, California, who was attending the event, died Saturday morning after being taken to the hospital. The cause of death for the 24-year-old was pending toxicology and other tests, the Clark County coroner's office said.

Event producer Insomniac issued a statement saying it was "deeply saddened" by the death and hoped attendees would do their part to keep the gathering safe.

Throughout the weekend, seven stages featured some of the biggest names in the music genre, including Avicii, Diplo, Afrojack and Tiesto, while fireworks arced over the racetrack, Ferris wheels shuttled riders high into the warm desert sky and whimsical, lifelike animatronic sculptures glowed.

But organizers like to call attendees the real "headliners" of the show. Flocking from every state and some 40 different countries, fans don bikinis, fuzzy boots, daisy crowns and body paint for a dance party that starts at sundown and ends at sunrise.

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Maggie Sanchez, left, and Chad Wry, both of Riverside, Calif., kiss beneath an art installation at the Electric Daisy Carnival Friday, June 20, 2014, in Las Vegas. (AP Photo/John Locher)

Two festival goers exchange beaded bracelets during the Electric Daisy Carnival, Friday, June 20, 2014, in Las Vegas. Many of the attendees make the bracelets, known as "kandi" to exchange with others at the festival. (AP Photo/John Locher)

Fireworks explode over the Electric Daisy Carnival, Friday, June 20, 2014, in Las Vegas. Fireworks and rides, including 5 Ferris wheels, add to the carnival atmosphere of the electronic dance music festival. (AP Photo/John Locher)

Carnival goers dance to music by Krewella at the Electric Daisy Carnival, Saturday, June 21, 2014, in Las Vegas. The festival sold over 130,000 tickets per night to the three-day ode to electronic dance music held at the Las Vegas Motor Speedway. (AP Photo/John Locher)

John Cameron and Julia French take a break during the Electric Daisy Carnival, Saturday, June 21, 2014, in Las Vegas. Ample spaces between stages allow festival goers to escape the loud music and pulsating masses of people. (AP Photo/John Locher)

After a long night of partying at the Electric Daisy Carnival, festival goers rest on a curb outside of the Las Vegas Motor Speedway early in the morning on Saturday, June 21, 2014, in Las Vegas. Many of the attendees will return to their home or lodging to rest during the day before returning for another night. (AP Photo/John Locher)

Emily Rose gets a facial massage from Josh Baum while sitting beneath an art installation at the Electric Daisy Carnival, Saturday, June 21, 2014, in Las Vegas. (AP Photo/John Locher)

Festival goers relax during a lull in the music at the Electric Daisy Carnival, Saturday, June 21, 2014, in Las Vegas. (AP Photo/John Locher)

A woman is loaded in to an ambulance outside of the Las Vegas Motor Speedway on the first night of the Electric Daisy Carnival, Friday, June 20, 2014, in Las Vegas. Between Friday evening and Sunday morning, Las Vegas police reported 560 mostly minor medical calls, with 17 resulting in trips to the hospital. (AP Photo/John Locher)

Festival goers rest in a patch of grass as dawn breaks after the first night of the Electric Daisy Carnival at the Las Vegas Motor Speedway, Saturday, June 21, 2014, in Las Vegas. The event runs from sundown until sunup each of the three straight nights. (AP Photo/John Locher)

People walk around a stage during the Electric Daisy Carnival, Friday, June 20, 2014, in Las Vegas. People from around the world come to the event to listen to electronic dance music and experience the lights, art installations and carnival rides. (AP Photo/John Locher)

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Dozens of couples married on the carnival grounds, promising "till death do us part" before a minister dressed as Elvis. Hundreds of others exchanged vows with significant others or groups of friends in non-binding commitment ceremonies.

Electric Daisy Carnival moved to Las Vegas four years ago from the Los Angeles Memorial Coliseum after the 2010 death of a 15-year-old attendee who was treated for drug intoxication.

The festival has encountered less controversy since moving across state lines and is embraced for the estimated $278 million it pumps into the Las Vegas-area economy each year.

But arrests and medical problems abound. Between Friday evening and Sunday morning, Las Vegas police reported 560 mostly minor medical calls, with 17 resulting in trips to the hospital. They also reported 48 drug-related felony arrests.

Text from AP Story ELECTRIC DAISY CARNIVAL LIGHTS UP VEGAS

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