I think that these (often very funny) "lyrical confusions" are driven by both the............
...........the artist's endeavours to fit the lyrics to the musical focrm the producer wants and/or the artist's own idiosyncratic take as far as pronunciation goes. The Nat King Cole classic "Mona Lisa" contains the following lines:
"Are you warm, are you real, mona lisa?
Or just a cold and lonely lovely work of art? "
If you listen to it it sounds for all the world as if he sung "are you warm are you rill mona lisa?" which does sound a touch peculiar. Oh, Happy New Year everyone!