Chelsea Clinton, daughter of the Former President Bill Clinton and Secretary of State Hillary Clinton, will marry her longtime sweetheart Mark Mezvinsky on July 31 surrounded by 500 of her closest friends — many of them among the most famous celebrities in the world.

The nuptials will take place at the Astor Mansion in the historic, upscale town of Rhinebeck, New York, about 90 miles north of the city. Here’s a snapshot of the guest list:

Oprah Winfrey, Barbra Streisand, Steven Speilberg and wife Kate Capshaw, former British Prime Minister John Major and Ted Turner will join the wedding's headliner President Obama himself.