Mariah Carey sparked concern after video from her recent show in Las Vegas was posted online.

A brief clip posted by a fan captured Carey, 55, delivering a performance lacking in energy. 

Carey’s movements appeared slow as she interacted with her backup dancer and sang a mash-up of various songs. 

The video, which was posted last week, prompted numerous fans to weigh in with their concern, with one asking if she was ‘in pain.’ 

‘Omg is she ok?’ one asked. ‘Is she in pain? What is going on?’ another asked.

‘I’m a little worried about my Mimi,’ another wrote with a red heart emoji.

Mariah Carey sparked concern after video from her recent show in Las Vegas was posted online

‘I love Mariah but that gave me Joe Biden vibes,’ wrote an observer. 

‘By all means move at a glacial pace,’ one Devil Wears Prada fan commented. 

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Another joked the Queen of Christmas reserves her energy for the holiday season: ‘She saves her energy for Christmas 25,’ they wrote. 

Carey is just days away from concluding her Las Vegas residency, The Celebration of Mimi, which began last year.

The series is set to end on February 15.

Outside of her career, Mariah recently landed at the center of romance rumors with musician Anderson Paak.

The duo first sparked dating rumors in late December when they were spotted enjoying dinner together in Aspen, Colorado.

In pH๏τos obtained by TMZ, the Leave The Door open singer was seen sweetly holding her hand as they entered Catch Steak restaurant on December 22.

A brief clip posted by a fan captured Carey, 55, delivering a performance lacking in energy

Fans weighed in with their concerns about Mariah in the comments section

At one point, he even gently wrapped his arm her around her waist as they ducked into the eatery and, ever the gentleman, appeared to hold the door open for her.

While the duo’s display may have suggested they were an item, sources insisted to the publication at the time that they were not dating, but instead, were collaborating on a new musical project.

Days later, however, they sparked even more speculation that something romantic was going on between them when they put on another affectionate display in the snowy city.

The duo were seen holding hands once again as they enjoyed another night out in Aspen.

In addition, an onlooker observed Anderson leaning over the table and kissing Mariah’s hand at one point during their dinner.

Afterwards, a source told DailyMail.com exclusively that they are taking their ‘brewing’ relationship in stride and ‘aren’t forcing anything.’

By comparison, her back-up dancer was full of energy 

The video, which was posted last week, prompted numerous fans to weigh in with their concern

Carey is just days away from concluding her Las Vegas residency, The Celebration of Mimi, which began last year

The insider said: ‘Anderson is such a joyful and fun person to be around. He is funny, brilliant and infects joy in everyone he is around, and Mariah has caught on to his nature and is eating it all up.

‘They just have natural fun around each other and their brewing relationship has no obstacles to it because they aren’t forcing anything or getting serious about it.’

‘Everything has been so easy, there are no hidden agendas, they just get each other. If they end up continuing at this pace, the sky is the limit.

‘They are just taking it in stride as they love hanging out with each other.’

According to the source, the possible couple is also interested in collaborating professionally, as they added: ‘They also want to collab with music, but just like their relationship, they aren’t forcing anything, they are letting it all happen naturally, letting life happen.’

The rumored romance came after a difficult year for Mariah. 

Over the summer, Mariah endured tragedy after both her mother Patricia, 87, and sister Alison, 63, died on the same day.