Released in 1991, Achtung Baby is the seventh studio album by U2. Produced by Daniel Lanois and Brian Eno and released by Island Records, this album features iconic tracks like "One" and "Mysterious Ways," showcasing the band's evolution into a more experimental sound. The colorful cover art, featuring abstract images and vibrant colors, reflects the album's themes of love, identity, and political unrest, making it a seminal work in the band's career and in rock music history.