Gene Merlino (sang for Franco Nero)
Interview: http://www.npr.org/templates/story/story.php?storyId=1311999. Here he discusses his career recording songs written (and paid for) by Average Joe wannabe amateur lyricists. Hear Gene sing "Green Fingernails Make Me Sick." (He doesn't mention Camelot.)
Mr. Merlino can also be heard singing over the end credits of the "Kamp Krusty" episode (9/24/92) of The Simpsons.
Non ho dovuto mai dormire sotto quell'arco!
Bene, forse una volta, due volte.