On August 21, U2 performed a never-before-heard track called "Every Breaking Wave" in concert in Helsinki, Finland. That song - which can now be heard online - is reportedly the lead single from the band's upcoming album Songs of Ascent.
U2 has already played three new songs on the current European leg of its 360° Tour: "Glastonbury," "North Star," and "Return of the Stingray Guitar," all premiered during the opening concert in Turin.
After performing "Every Breaking Wave," a slow-tempo acoustic song, lead singer Bono told the crowd, "No one has heard that before - not even us."
Bono talked about the song to music magazine Rolling Stone in March 2009, saying it had originally been intended for the band's 2009 studio album No Line on the Horizon but would instead serve as the lead single for forthcoming LP Songs of Ascent, which may be out by the end of 2010.
Bono recently told Rolling Stone that the band has three additional albums worth of material in the works: a rock album, a "club-sounding" album, and the band's music for the Broadway play Spider-Man: Turn Off the Dark.
Watch U2's performance of "Every Breaking Wave": http://www.youtube.com/watch?v=q9C-z-dljsY