Mariah Carey Lip-Sync Fail

Mariah Carey was caught lip-syncing -- very badly -- during her performance at the Jazz and Blues Festival in Jamaica.

Video shows the 44-year-old diva attempting to hit the high notes in her 1995 hit "Fantasy." What makes it really awkward is that she dramatically pretends to belt out the high notes but misses the cues, so that she mimes in the wrong places.

Eventually, Mariah seems to give up and just lets the backing track take over as she flashes a smile at the audience.