On the night of the final Modugno performed 14th in the running order, following Monaco and preceding France. "Dio, come ti amo" was a dramatic Italian ballad, but with a very unusual and distinctive instrumental arrangement, and Modugno gave an exceptionally emotional performance during which he appeared at some points to be on the verge of crying. The package appeared to baffle the national juries, as at the close of voting "Dio, come ti amo" had failed to pick up a single point, placing Italy joint last of the 18 entries, along with the song from Monaco which had been similarly snubbed. This was the only occasion on which Italy received the dreaded nul-points, also the only time they finished last in the contest. The Italian jury awarded its 5 points to Norway.
Despite its total failure in Eurovision, "Dio, come ti amo" became a popular song in Italy and beyond and was covered by several other singers. It is generally considered among the least-deserving Eurovision nul-pointers of all.