"Mysterious Ways" is a song by Irish rock band U2. It is the eighth track from their 1991 album "Achtung Baby" and was released as the album's second single on 2 December 1991. The song began as an improvisation called "Sick Puppy", with the band liking only the bass part that bassist Adam Clayton composed. The band struggled to build a song from it, with vocalist Bono and producer Daniel Lanois arguing intensely during one songwriting session. The song's breakthrough came after guitarist the Edge began experimenting with the Korg A3 effects unit. "Mysterious Ways" features a danceable beat, funky guitar hook, and conga-laden percussion, as well as mystical lyrics by Bono about romance and women.