A total of 22,143 people were evacuated on Saturday when the stage at Tomorrowland in Barcelona erupted in flames, sending attendees running.
Firefighters rushed to the festival in Santa Coloma de Gramenet in north-eastern Spain, and eventually managed to extinguish the blaze which luckily caused no injuries.
Footage of the incident shows one side of the stage consumed by giant flames, a shower of sparks raining down as people ran away and black smoke billowing up.
It is still not clear what caused the blaze, but organisers said on their Facebook page it was due to a technical malfunction.
“Thanks to the professional intervention of the authorities all 22,000 visitors were evacuated safely and without reports of injuries,” they said.
