Inquiring as somebody that would not talk Arabic: Googling هذه ليلة وألف ليلة provides me the e-book "1001 evenings" Because of this. Is there an opportunity that what he sings is "That is 1001 nights"? has a lot of translations including “there”. Within the context of the line, Piaf https://bookmarkmoz.com/story18371025/the-la-vie-en-rose-lyrics-french-diaries