The Black Keys felt freed of the need to write hit singles for Turn Blue
, but this still became radio hit. Auerbach told the BBC: "We made five albums without once ever thinking about a single and then we wrote 'Tighten Up
' and it got played on radio and changed our career. So from then we started looking at it as a challenge."
"So when we were writing 'Fever,' we wanted it to be catchy," he continued. "We weren't thinking 'this is a radio hit' but it was like 'the melody is catchy, let's do things that would make it even catchier.'"