All the Stars Spotted at the US Open, Including Hailey and Justin Bieber

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The 2023 US Open — the last tennis Grand Slam of the year — wrapped up on Sept. 10, but not without some major tennis action. American player Coco Gauff — at just 19 years old — took home the championship on the women's side, while Novak Djokovic won on the men's. The crowds were also treated to great tennis from Americans like Frances Tiafoe, Ben Shelton, Taylor Fritz, and Madison Keys. And during the two weeks of the tournnament, the Billie Jean King Tennis Center in Flushing, Queens, transformed into a celebrity hot spot, becoming the date-night destination for couples like Justin and Hailey Bieber; Kylie Jenner and Timothée Chalamet; Nicole Kidman and Keith Urban; and many, many more.

And it's not just fans who like seeing the celebs — it's the players, too. Gauff joked after her third-round match (and victory) that seeing Justin and Hailey cheering for her inspired her win. "I definitely saw who was there," Gauff said on ESPN's broadcast after the match, per CNN. "I thought, 'I cannot lose in front of Justin Bieber.' I didn't lose a game after I saw that."

Ahead, check out all the biggest celebrities we spotted at the US Open in 2023.

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James Marsden and Andy Cohen at the US Open on Sept. 10.

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Matthew McConaughey and Camila Alves at the US Open on Sept. 10.

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Nicole Kidman and Keith Urban at the US Open on Sept. 10.

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Leonardo DiCaprio at the US Open on Sept. 10.

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Emily Ratajkowksi and Justin Theroux at the US Open on Sept. 10.

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Kylie Jenner and Timothée Chalamet at the US Open on Sept. 10.

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Jon Hamm and Anna Osceola at the US Open on Sept. 10.

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Molly Ringwald at the US Open on Sept. 10.

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Jerry and Jessica Seinfeld at the US Open on Sept. 10.

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Laura Dern and Mariska Hargitay at the US Open on Sept. 9.

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Ariana DeBose and Cara Delevingne at the US Open on Sept. 9.

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Amanda Seyfried and Rachel Brosnahan at the US Open on Sept. 9.

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Billy Crudup, Naomi Watts, Sam Rockwell, and Leslie Bibb at the US Open on Sept. 9.

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Charlize Theron at the US Open on Sept. 9.

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Mindy Kaling at the US Open on Sept. 9.

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Madelyn Cline at the US Open on Sept. 9.

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Rami Malek and Emma Corrin at the US Open on Sept. 9.

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Chase Stokes at the US Open on Sept. 9.

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Tom, Jack, and Vivian Brady at the US Open on Sept. 8.

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Idina Menzel at the US Open on Sept. 8.

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Justin Timberlake at the US Open on Sept. 10.

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Naomi Osaka at the US Open on Sept. 7.

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Sophia Bush at the US Open on Sept. 7.

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Lin-Manuel Miranda and Renée Elise Goldsberry at the US Open on Sept. 7.

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Lil Uzi Vert at the US Open on Sept. 7.

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Julianne Hough at the US Open on Sept. 6.

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Karlie Kloss and Josh Kushner at the US Open on Sept. 6.

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Mariska Hargitay and her son August Hermann at the US Open on Sept. 5.

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Mariska Hargitay and Peter Hermann at the US Open on Sept. 5.

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Emma Watson and Anna Wintour at the US Open on Sept. 5.

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Meek Mill at the US Open on Sept. 5.

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Huma Abedin and Deborra-Lee Furness at the US Open on Sept. 5.

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Retta at the US Open on Sept. 5.

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Hailey and Justin Bieber at the US Open on Sept. 1.

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Katie Holmes at the US Open on Sept. 1.

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Jimmy Butler at the US Open on Sept. 1.

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Charity Lawson and Dotun Olubeko at the US Open on Aug. 31.

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Olympian Laurie Hernandez at the US Open on Aug. 30.

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Zac Efron at the US Open on Sept. 1.

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Maren Morris and Ryan Hurd at the US Open on Sept. 2.

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Tina Fey at the US Open on Sept. 4.

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Taye Diggs at the US Open on Sept. 4.

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Dominique Thorne at the US Open on Sept. 4.

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Spike Lee at the US Open on Sept. 3.

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Wanda Sykes at the US Open on Sept. 1.

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Michael and Victoria Imperioli at the US Open on Sept. 1.

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Anna Wintour and Huma Abedin at the US Open on Sept. 1.

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Shonda Rhimes at the US Open on Sept. 4.

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New York Yankees star Aaron Judge and Samantha Bracksieck at the US Open on Sept. 4.

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New York Mets star Pete Alonson at the US Open on Sept. 3.

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Queen Latifah at the US Open on Aug. 29.

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Ariana DeBose at the US Open on Aug. 29.

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J Balvin and Valentina Ferrer at the US Open on Aug. 29.

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Barack and Michelle Obama at the US Open on Aug. 28.

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Lindsay Vonn and Diego Osorio at the US Open on Aug. 28.

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Danny Devito at the US Open on Aug. 28.

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Katie Couric and John Molner at the US Open on Aug. 28.

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Vera Wang and Anna Wintour at the US Open on Aug. 28.

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Jamie Chung and Bryan Greenberg at the US Open on Aug. 28.

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Hilaria and Alec Baldwin at the US Open on Aug. 28.