"Dreaming of You", the lead single, was written by Franne Golde and Tom Snow. "Dreaming of You" is a power ballad and contemporary R&B. The song's main instruments are the piano, wind chimes and funk bass. "Dreaming of You" is written in Ab major and begins in the key of G♯(Ab). It changes to the key of A♯(Bb) after the bridge. Selena's vocal range spans Eb3-Eb5. "The Los Angeles Times" ranked "Dreaming of You" number five from their "Top-ten Singles of 1995". Its lyrics are about a lonely and depressed woman in her room at night, who dreams of being with her boyfriend. The song begins with a low-key instrumentation, which provides emphasis for Selena's vocals. Geraldo Martinez of "El Dictamen" wrote that the opening of the song was "surprisingly tantalizing". "Dreaming of You" became Selena's signature song and was given positive feedback from music critics.