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Mariah Carey made her return to the stage, for the first time after giving birth to twins, in diva-like form.
Wearing a one-sleeved black dress, she changed her shoes after singing two songs and had her hair and make-up touched up.
Mariah, who gave birth to fraternal twins via Caesarean section in April, performed for a few hundred people on Thursday night at New York's Gotham Hall.
Mariah said of her return to th stage: "I didn't realise this was a big deal."
The Grammy winner sang a number of her hits during her short performance, from Hero to We Belong Together and also the Jackson 5 cover I'll Be There.
Mariah said if her son Moroccan was on stage, he would probably beat-box, and that her daughter Monroe would be a diva.
The concert was one of four shows dubbed Plot Your Escape: Four Concerts. Countless Celebrities. 1 Epic Night, by Caesars Entertainment.
Diddy joined Mariah in New York, while Lil Wayne and Cee Lo performed in Los Angeles, Maroon 5 and Sara Bareilles in Chicago, and Mary J. Blige and Gavin DeGraw in New Orleans. The shows happened simultaneously and were streamed online.
"We can't do anything without it being documented," Mariah told the audience. "Doesn't it freak you out at all?"
The multiplatinum performer thanked her fans and joked: "Catch me at my real show next time."
