What a lot of people don't realize is in the very beginning of the song, according to the actual Sheet Music that was written way back in the day in 1953 or so, it reads: "When the moon hits your eye, like a big pizza pie That's Amore" but "Dean" added a little bit of an Italian twist to it by changing only two words; which was brilliant in my opinion which made the song even much more Italian and better. He only changed ("2") words the part where the sheet music says: ("like a big pizza pie") That's Amore. He changed it to: ("like-ah bigga") Pizza pie That's Amore.