U2 are rehearsing for their first 2010 show at Stadio Olimpico di Torino in Italy. That means this Friday will also be their first show since Bono injured his back, forcing the band to cancel their U.S. tour and Glastonbury headlining appearance. It seems like they used the downtime to write some songs — fans outside the stadium caught U2 rehearsing a new song. Listen/watch below, but keep in mind that the footage was shot outside the stadium, within a crowd of fans, so the audio isn’t clear. UPDATE: Slightly better audio…

(via NME)