Read the lyrics to “Fireflies” by Martin Garrix, U2. Produced by Martin Garrix, Klahr. “Fireflies” weave a poetic narrative around the fleeting, electric nature of a moment of profound connection. As Garrix himself stated, the song has a “very unique mood,” and the lyrics reflect that perfectly . “Fireflies” is a song about the hope that lies in the middle of everything, a story without words but with a melody that feels larger than life.