During his headline performance at Tomorrowland, Martin Garrix introduced a brand-new track called Fireflies and surprised the audience with a special guest. As the song began, U2 guitarist The Edge joined him on stage, turning the live debut into one of the festival’s standout moments.
The collaboration brought together two artists from very different musical backgrounds. Garrix handled the electronic production while The Edge added his signature guitar sound, creating a mix of dance music and rock that drew an enthusiastic response from the crowd. The performance marked the first public presentation of the new song.
Tomorrowland has built a reputation for unexpected collaborations, and this appearance continued that tradition. Fans gathered at the festival’s main stage watched the pair perform together as the visuals and production matched the scale of the event.
While no additional details about the song’s future release were shared during the performance, Fireflies immediately became one of the most talked-about moments of the festival, highlighting how live events continue to create memorable musical partnerships.