"Cariño, Cariño Mio" ("Sweetheart, Sweetheart of Mine") was the fourth single released from "Dulce Amor". The song was written by A.B. Quintanilla III. It was produced by Lauren and Carlos Diaz. The songs lyrics are about a girl who is in love with a guy. She sings about giving anything to him, just to be with him. The song had its key signature in common time. It was performed on D major with 103 beats per minute. The song was mixed with Polka and Jazz.