Sweet Child O' Mine is a hard rock power ballad written collaboratively by all five members of Guns N' Roses during informal jamming sessions in 1987 at their shared home near Griffith Park in Los Angeles. The song emerged spontaneously when Slash improvised its now-iconic opening guitar riff, which he later described dismissively as a circus melody or guitar exercise. Drummer Steven Adler joined with a beat, Izzy Stradlin added chord accompaniment, and Duff McKagan contributed a bassline, while upstairs Axl Rose was moved to adapt a poem he had written for his then-girlfriend Erin Everly, daughter of Everly Brothers singer Don Everly. The lyrics compare a lover's features to innocent childhood memories, lending the composition a heartfelt sincerity distinct from the band's typical sleaze-rock aggression. Rose drew inspiration from Lynyrd Skynyrd recordings in pursuing this more earnest emotional direction. The song's structure builds from its melodic verse-chorus framework into a dramatic breakdown section featuring Rose's improvised repeated question, followed by an extended guitar solo that gives the piece an epic arc. Producer Spencer Proffer suggested the breakdown passage during pre-production sessions. The composition incorporates modal elements that contribute to its distinctive melodic character and a sense of nostalgic warmth. It became the band's sole number-one single on the Billboard Hot 100 and has been widely recognized as one of the most famous guitar riffs in rock history, covered extensively across multiple genres.