The "Obsessed" singer was performing at one of her Celebration of Mimi residency in Las Vegas when fans commented that she looked "stiff" in videos.

Mariah Carey is concerning fans after a video from her recent Las Vegas gig showed her walking weird on stage.

Mariah Carey’s fanbase expressed their concerns for the singer over a video from one of her recent Las Vegas concerts that was posted online last week. A show attendee shared a clip of Carey, 55, moving slowly on stage as she sang in the microphone and interacted with a backup dancer.

Mariah Carey has worried fans after a clip her emerged of her moving slowly on stage leading them to question whether the singer is feeling up to scratch during her performance