30 July, 2017
Thousands of terrified music fans fled in panic after the blaze erupted near the speakers.
Around 22,000 festival-goers were evacuated from the event in Barcelona just hours before superstar DJ Steve was due to come on.
Glasto's raunchy revellers are a thing of legend.
Someone who was present at the festival told reporters that the stage "just exploded", but gave no explanation has been given as to what happened or why.
But many festival goers appear to have simply stood and filmed the inferno on mobile phones.
On-stage fireworks have been blamed for the blaze, according to local media.
More than 22,000 were evacuated from the event in Parc de Can Zam, which was due to continue until 3am.
22,000 people were evacuated from Tomorrowland Unite Spain, however no one is thought to have been injured.
An investigation has been launched.
The fire broke out Saturday night at the Tomorrowland Unite Spain festival which was held in conjunction with and video-linked to the main Tomorrowland festival stage in Belgium. At the time of reporting, no deaths or major injuries have been reported.