I agree that Whitney Houston performance is probably the greatest of all time, although it was disclosed in 2016 that she pre-recorded the audio and portions of two separate takes were used:
Stadium and TV audiences around the world would actually hear the pre-recorded track when Houston performed at the Super Bowl. As Minor previously revealed to ESPN in 2016, Houston sang into a dead mic while the pre-recorded track played — a move that was done out of sheer necessity.
"There's no way to rehearse the sound of the crowd coming at you," Minor said then. "You don't know where the first note begins."