This is a pun on the Italian Cosa Nostra. The name of the singer is Glucose-which in Russian is glukoza. The singer is a rather attractive 21 year old (about 17 when she sang this song). I have heard some examples of her unaugmented voice, and well, there are some singers that need autotune! My daughter Stacy has a Глюк'oza doll that sings this song.
