My mom always sang "Is it all that hard, is it all that tough, Well i've showed you..
Oh my God!, now isn't that enough?" in Talk To Me. Until I told her the actual lyric and pointed out that what she was singing made zero sense.
And she always thought it was "I went forth with an
angel, and the desire to please" in Edge. And she sang "liars go through the fog" in Angel.
I also heard "She was just a witch" in Gypsy when I was little.
My little brothers still sing "Stop Draggin' My
Cart Around", whatever that means.

and they used to think she was saying "Take from me my
legs", in Leather & Lace, which I can actually hear when I listen for it. Poor paraplegic Stevie! lol