"One in a Million" is one of the most controversial tracks in the Guns N' Roses catalog, an acoustic number from the 1988 studio side of G N' R Lies that generated intense debate for its provocative lyrics. Musically, the song is an accomplished piece of acoustic rock, with Slash contributing a guitar solo at 136 BPM in G-flat minor that ranks among his most melodically refined unplugged work. The solo navigates the song's minor-key tonality with sophisticated phrasing, demonstrating the classical and flamenco influences that occasionally surface in Slash's playing. Written by the full band, the composition moves through shifting dynamics that build toward the solo section, which serves as the track's instrumental climax. Despite the controversy surrounding the lyrics, the musical arrangement showcases the band's command of acoustic textures and dynamic storytelling. Slash's extended solo spans over thirty seconds, allowing him to develop melodic ideas with a patience and architectural sense that his electric work sometimes sacrifices for raw power. The track remains a polarizing entry in the GN'R discography, though its musical craftsmanship is widely acknowledged.