Listen to Finale - Ah! Sweet Mystery Of Life - Italian Street Song (Reprise), from "Naughty Marietta" online. Finale - Ah! Sweet Mystery Of Life - Italian Street Song (Reprise), from "Naughty Marietta" is an English language song and is sung by Anna Moffo and Lehman Engel. Finale - Ah! Sweet Mystery Of Life - Italian Street Song (Reprise), from "Naughty Marietta", from the album Kern : Roberta - Herbert : Naughty Marietta - Friml : Rose-Marie, was released in the year 2010. The duration of the song is 3:09. Download English songs online from JioSaavn.