I doubt the settlement would have included not performing the song live anymore. In fact, I think she performed it as late as 1986, for the first few concerts of her "Rock a Little" tour before dropping it from the set list.
However, I think you may be on to something in that the lawsuit probably added to whatever emotional baggage she already seems to have with this song. I wouldn't be surprised if she doesn't like to sing it because it brings back bad memories of the lawsuit (in addition to the abortion and her ill-fated affair with Mick).
|