<br /> <p>Bono and The Edge surprised Berlin U-Bahn commuters on December 6 as the U2 duo played a 15-minute set on a subway platform to promote the band’s newly-released album, Songs of Experience.</p><p>The apt marketing move saw the pair riding the city’s U2 line “looking for Zoo Station”</a>. The group’s relationship with the city goes back to the recording of classic ’90s album Achtung Baby</a> there, and locals swarmed to record footage of the surprise performance. Credit: Facebook/Erçin Yalçın via Storyful</p><br />