Listen to I Could Have Danced All Night (Originally from "My Fair Lady") [Instrumental Version] online. I Could Have Danced All Night (Originally from "My Fair Lady") [Instrumental Version] is an English language song and is sung by Karaoke Collective. I Could Have Danced All Night (Originally from "My Fair Lady") [Instrumental Version], from the album A-Z of Karaoke - Songs That Start with "I" (Instrumental Version), was released in the year 2013. The duration of the song is 3:33. Download English songs online from JioSaavn.