Emma Watson, Justin Bieber, and other celebrities attend the US Open.

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At the US Open in New York this year,

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celebrities could be seen both on and off the court,

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and Arthur Ashe Stadium was packed with them.

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This year's US Open saw a crowded Arthur Ashe Stadium filled with celebrities from all walks of life

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including those in music, politics, sports, film, and fashion.

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They were there to watch the tennis action in the sweltering New York heat.

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Justin Bieber and her wife Hailey Bieber are among the most popular attractions.

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Justin Bieber absolutely made me feel like a star

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