Mariah Carey has seen slow uptake of tickets for her Las Vegas residency at the Colosseum at Caesars Palace.

The Butterfly Returns shows still have seats available for the opening night of her three-month residency on July 5.

The New York Post reported that Carey fired her manager Stella Bulochnikov in November and hasn’t performed since Christmas.

Bulochnikov was going to book her at a smaller venue in Vegas “so they could keep announcing sold-out shows,” a source said.

“Instead, they put her back in Caesars with 4,300 seats.”

LiveNation insists it’s “very pleased with ticket sales.”

Last year, the popstar was reportedly struggling to sell concert tickets for her All the Hits tour with Lionel Richie.

Ticketmaster attempted to ramp up slow sales for the March concerts with a buy one, get one free promotion.

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