Overview
- The studio version of 'Fireflies' was released July 24 on Darkroom Records after Martin Garrix first played the track live at Tomorrowland earlier this month.
- Garrix brought U2 guitarist The Edge onstage for the festival debut, a surprise moment that previewed the studio single now available to stream.
- 'Fireflies' is the first released song to feature all four members of U2 working directly with Garrix, capping a collaboration that began about six summers ago.
- Critics and the artists describe the track as a blend of Bono’s soaring vocals and U2’s arena sensibility with Garrix’s polished electronic production, and both The Edge and Garrix issued statements praising the partnership.
- The release follows U2’s two surprise 2026 EPs and the single 'Street of Dreams,' and it reinforces the band’s buildup to an as-yet-untitled studio album due later this year with drummer Larry Mullen Jr. back in the studio.