“Crazy on You" is the guitar-driven debut single from the female-fronted (Nancy and Ann Wilson) rock band Heart's debut album Dreamboat Annie, released in 1976. Starting with an acoustic guitar intro, the song turns into fast-paced rock song that was the signature sound of the band in their early years. “Crazy on You” attracted attention both for the relatively unusual combination of an acoustic guitar paired with an electric guitar, and the fact that the acoustic guitarist was a female – a rarity in rock music during that time. According to co-writer/guitarist Nancy Wilson on an episode of In the Studio with Redbeard (which devoted an entire episode to the Dreamboat Annie album), the rapid acoustic rhythm part was inspired by The Moody Blues song “Question”.
The song’s lyrics tell of a person’s desire to forget all the problems of the world during one night of passion. During an interview on Private Sessions, Ann Wilson revealed the song was written in response to the stress caused by the Vietnam War and social unrest in the United States in the early seventies.