 The song was written by Jimena Romero, Julio Reyes, Marc Anthony, and produced by Estéfano and Reyes.The song marked the beginning of a musical project that lasted for three years and was originally conceived from a dream that Anthony had with Spanish recording artist Rocío Dúrcal two weeks after the singer's death.According to him, Dúrcal asked him to listen to a piece of music, which turned out to be the primary melody for the song.