He added: “Mariah Carey is an award-winner, a record-breaker, and an absolute global icon – this show will be historic.
“Mariah’s live show is second to none and with such a catalogue of huge hit singles, it’s going to be an incredible occasion.”
The event is the third show to be revealed in a series of large-scale outdoor concerts on the estate.
Stereophonics will play on Saturday 16 August, and Michael Bublé will perform on Sunday 17 August.
Carey has recorded 19 US number ones, more than any other solo artist in Billboard Hot 100 history.
She became an immediate sensation with her 1990 self-titled debut album, thanks to her five-octave range and popular love ballads.
In 2020, she released her memoir The Meaning of Mariah Carey, which became a New York Times Best Seller, and in 2023 was recognised by Rolling Stone as the fifth-greatest singer of all time.
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