February 04, 2014 11:58 AM
UPDATED February 04, 2014 12:01 PM
Click here if you are not automatically redirected.
Sign up today for a free 30 day free trial of unlimited digital access.
On Dec. 6, Bono and The Edge played a 15-minute set on a Berlin subway line that shares the band's name, U2, to promote the band’s newly-released album, Songs of Experience.
View More Video