It’s a shame people on here can’t appreciate a talent when they see and hear one. This is a Prime example.
Vocals are amazing and even better than the studio version yet all you have to say about this performance has to do with some stupid comparison to Mariah.

Ariana is killing it with her music and her talent - if you don’t dig it, why do you bother clicking and leave a negative comment? Just skip it rather than bash her for no good reason.