Emily Zemler
View all posts by Emily Zemler July 24, 2026
U2 and Martin Garrix Kurt Iswarienko U2 and Martin Garrix released a joint single, “Fireflies.” Garrix premiered the track live during his headlining set at Tomorrowland last Friday, which feature a surprise appearance from The Edge.
The soaring track marks the first time all four members of U2 have appeared on a song with Garrix, although the band members have a long history of working with the producer. Most recently, Garrix produced “Scars,” featured on U2’s latest EP, Easter Lily. In 2019, Martin collaborated with Bono and The Edge on “We Are the People,” written for the UEFA European Football Championship. He also produced the U2 track “Your Song Saved My Life” that appeared on the Sing 2 soundtrack. Bono has also co-written Garrix singles like “Angels for Each Other,” Catherina,” and “Weightless.”
“We go back a long way with Martin, and there’s always a sense of adventure whenever we get together,” The Edge shared in a statement. “Playing ‘Fireflies’ for the first time at Tomorrowland, in front of one of the most passionate festival crowds anywhere, was such a rush… in fact I might have enjoyed it a bit too much. It reminded me of why I love playing outdoors. I like it better when there’s no ceiling.”
Garrix added, “‘Fireflies’ has a very unique mood and it’s a special song we started working on six summers ago. It felt electrifying and very surreal to finally debut it at Tomorrowland with The Edge. I’ve worked with Bono and Edge before, but working with the whole band I got to get a glimpse of their chemistry and why U2 are who they are. They are incredible friends and collaborators, and it has been an absolute honor to work with them again.”
