In 1957, they sang two French songs composed by
Henri Betti : "La Fête à Neu-Neu" (composed in 1943 with the lyrics of
Maurice Chevalier and
Maurice Vandair) and "La Polka des Barbus" (composed in 1942 with the lyrics of
Maurice Chevalier) with
Georges Derveaux and his Orchestra in
Henri Betti (1957).