Diana Ross handled a crazed fan like a boss during a surprise NYC concert

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Diana Ross poses in the press room during the 2017 American Music Awards. (Photo by Alberto E. Rodriguez/Getty Images)

A crazed fan soon found out that nobody bosses Diana Ross “The Boss” around.

On Monday, the legendary singer appeared at a surprise pop-up concert for the opening of the Ian Schrager’s Edition hotel in Times Square but was bombarded by a belligerent fan who poked her and flipped her the middle finger, Page Six reports.

Ross, 74, was performing inside the hotel’s Paradise Club when a male fanatic pushed his way through the crowd and pushed up on the former lead singer of the Supremes, as she sang her solo hits like “Upside Down.”

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But momma Ross slapped the guy who appeared to be drunk in love with her. When she waved her finger at him in disapproval, he then “flipped the bird” back.

Security ushered the disrespectful concert-goer off the grounds after he tried to grab the icon’s tulle boa.

Some people have all the nerve, but it seems like The Boss handled it like the pro she is. Ross partied in the midnight hour with other celebs like Kendall Jenner, Cara Delevingne and Hailey Bieber, the outlet reports.

“They were each paid a significant amount,” a source told Page Six, about $250,000 each.

It was a celebratory night that also included performed by Chic and Nile Rodgers.

Also spotted was Andy Cohen, Joan Smalls, Harry Brant, and Ellen von Unwerth.

Schrager is the legend who created the famed Studio 54 with Steve Rubell. As expected, he was excited about the opening saying: “Everything seems to have come full circle,” nothing that Ross once played at Club 54’s closing and yet here she was opening up for his newest club.

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“Then we jump forward all these years, and she does the first night . . . Too bad Steve wasn’t around to enjoy it,” he said of his ex-business partner who died in 1989.

“This is where it all began. You think about all the naysayers about Times Square, but this is the center. After the war, people came back here, and you had the Copacabana, the New York Times, Central Park up the street, the banks up and down the next avenue,” says Kerstin Pace, director of sales and marketing for Edition. “Outside it might be a mad light show, Olive Garden, fake Irish pubs, but you come inside and it is peaceful and quiet.”