Who sang if ever i should leave you in the movie camelot?

In the movie "Camelot," the song "If Ever I Should Leave You" is sung by the character Lancelot, portrayed by Franco Nero. The song expresses Lancelot's deep love and devotion to Guinevere, played by Vanessa Redgrave. The film, released in 1967, features a musical score by Alan Jay Lerner and Frederick Loewe.