U2 talks of new album

+ U2 talks of new album in the works

A moment later the U2 frontman had cranked up a track from the band's work-in-progress April album, an anthemic number about leaving one's hometown titled "Invisible." As the song played, he spiritedly played air guitar to it, also belting along with the track's vocals, so that, in effect, Bono was performing a duet with himself.