U Mariah fans are more delusional than any other group. Mariah ain't singing them verses. The ad libs, maybe, it's the same damn version from Jimmy Kimmel. There is a tone difference between the verses and the hook which can only be explained as lipsynching. She already proved she does it. Anyone remember her GMA performance of Touch My Body?...Oh that's right, you guys blamed it on GMA, cuz they provided the music, NOT!I'm not hatin on Mariah lipsynching, it is what it is though. And her stage presence hasn't changed since she was torn apart after her first tour for the Music Box cd.