American born Francis Stephen Castelluccio (1934), Frankie Valli (as he is better known) is perhaps most famous for being front man to the hugely popular 'Four Seasons'and having an impressive falsetto voice.
His solo career brought him 9 top 40 hits and his no. 1 hits include 'My Eyes Adored You' and the song 'Grease' (is the word....is the word!) from the 1978 smash hit movie starring John Travolta and Olivia Newton John. Valli was inducted into the Rock and Roll Hall of Fame in 1990.