Achtung Baby (pronunciation: /ˈɑːktuːnɡ ˈbeɪbiː/) is the seventh studio album by Irish rock band U2. It was produced by Daniel Lanois and Brian Eno, and was released on 19 November 1991 on Island Records. Stung by the criticism of their 1988 release Rattle and Hum, U2 shifted their musical direction to incorporate alternative rock, industrial, and electronic dance music influences into their sound. Thematically, the album is darker, more introspective, and at times more flippant than their previous work. Achtung Baby and the subsequent multimedia-intensive Zoo TV Tour were central to the group's 1990s reinvention, which replaced their earnest public image with a more lighthearted and self-deprecating one.
Seeking inspiration on the eve of German reunification, U2 began recording Achtung Baby at Berlin's Hansa Studios in October 1990. The sessions were fraught with conflict, as the band argued over their musical direction and the quality of their material. After tensions and slow progress nearly prompted the group to break up, they made a breakthrough with the improvised writing of the song "One". Morale and productivity improved during subsequent recording sessions in Dublin, where