Even Billy's fans call this the dud of the night. Calling it the "bathroom break" and her voice adds nothing but an irritation to the song. Some things sound good on paper but execution fails. This maybe could have been a small theater performance but a large stadium it fails. Stevie used to be able to wrap her voice around anyone's. She cant do that anymore. But IMHO this is Billy's fault, not hers. Its his song and it was not meant for this.
https://www.youtube.com/watch?v=BqIoebNGfls