"So Cruel" is a cover of a U2 song. The track was made for a special tribute album to U2, for the 20th Anniversary of Achtung Baby, entitled AHK-toong BAY-bi Covered. It was released in the UK on October 25, 2011. It was subsequently released via iTunes as an album-only track.
Martin Gore: "We first heard Achtung Baby working on Songs Of Faith And Devotion with Flood. It was the closest our bands ever got: U2 had become more electronic while Depeche Mode were working on a new rock vision. But there was never a rivalry. Bono used reverse psychology in his email, saying he totally understood why we'd say no. We just thought, Why not? 'So Cruel' is Bono at his best, words-wise. And we couldn't tackle One - that would be almost sacrilegious."
Dates where So Cruel was played
So Cruel has never been played live.