It was date night at the Opening Gala for the US Open on Monday.

Among the notable couples: Mayor Bloomberg and longtime girlfriend Diane Taylor, Zach Braff and model girlfriend Taylor Bagley, and newlyweds Alec Baldwin and Hilaria Thomas, who were happy to pose for plenty of photos at the Billy Jean King National Tennis Center in New York.

The evening's event was hosted by USTA Serves, an organization dedicated to funding scholarships to tennis educations programs around the country.

The US Open runs from August 27 to September 9.

Photos of Monday's gala below:

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  • Diane Taylor, Mayor Michael Bloomberg

    JIMI CELESTE/patrickmcmullan.com

  • Alec Baldwin

    JIMI CELESTE/patrickmcmullan.com

  • Alec Baldwin, Hilaria Thomas

    JIMI CELESTE/patrickmcmullan.com

  • Hilaria Thomas

    JIMI CELESTE/patrickmcmullan.com

  • Felicity Blunt, Stanley Tucci

    JIMI CELESTE/patrickmcmullan.com

  • Debbie Phelps

    JIMI CELESTE/patrickmcmullan.com

  • Jordin Sparks

    JIMI CELESTE/patrickmcmullan.com

  • Roger Federer

    JIMI CELESTE/patrickmcmullan.com

  • Anna Chlumsky

    JIMI CELESTE/patrickmcmullan.com

  • Zach Braff

    JIMI CELESTE/patrickmcmullan.com

  • Taylor Bagley, Zach Braff

    JIMI CELESTE/patrickmcmullan.com