What Could Have Been

-Performance was set to take place in a fictional 80's themed talk show called "As It Lays."
-James Corden would introduce her.
-She would then perform "Kiss it Better" in full.
-Afterwards she would sit down with Corden and answer questions.
-Doctors told her not to proceed or she would be risking permanent vocal-cord damage.

Sources: 1 | 2