"It's a song about uncertainty. We talked a lot about uncertainty when we were making the record. Musically, uncertainty is the antidote to complacency. As far as the song was concerned, all the ad slogans were the real breakthrough for me. My favorite line is 'We're mild and green."
-The Edge on Zooropa
"The Fly" was chosen as the first single of Achtung Baby because its dance beats, distorted vocals, and hard industrial edge sounded nothing like typical U2.