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A music superstar, an Oscar winner, and a tennis legend take over the Met Gala ... we don't know if there's a punchline yet -- because we'll have to wait and see what happens since Beyoncé , Nicole Kidman and Venus Williams have been named co-chairs of the event!

The three stars have been tapped to work with industry icon Anna Wintour -- who always heads up the annual fashion extravaganza -- on next year's edition of the event ... with Vogue announcing the news via Instagram Wednesday morning.

The gala has a "Costume Art" theme in 2026 ... essentially a celebration of the intersection between human body and art -- so, expect to see stars celebrating their own skin as they march up The Metropolitan Museum of Art.

Zoë Kravitz , Sabrina Carpenter , Doja Cat

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