piero: mamma ma la canzone mia piu' bella sei tu. group: sei tu la vitanon ti lascio mai piu' mamma mai piu'.♪ piero: mama, we love you. piero: we grew up watching american movies and listening to american music, and like you, so many of our heroes came from music and film. one of them wrote this next song, and the other loved it so much that it became one of his theme songs. ignazio: it is an honor for us to sing this song in tribute to both of them, and to sing it here in motown, the city and the record label that gave us one of them. gianluca: ♪smile though your heart is aching, smile even though it's breaking, when there are clouds in the sky you'll get by