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George Soros, Tamiko Bolton

Billionaire investor Soros and Bolton are kicking off their wedding festivities on Friday with a dinner followed by a reception at Manhattan's Museum of Modern Art.

After a small ceremony Saturday, the pair will host a reception at an arts center with more than 500 guests, including World Bank President Jim Yong Kim and some foreign leaders, including Hendrik Toomas Ilves, president of Estonia; Ellen Johnson Sirleaf, president of Liberia; and Edi Rama, prime minister of Albania.

Fellow hedge fund titans Paul Tudor Jones and Julian Robertson will also be there for the nuptials— the third for Soros and second for Bolton. Several U.S. political figures will attend, including House of Representatives Minority Leader Nancy Pelosi and Lt. Gov. Gavin Newsom of California, both Democrats.

Bolton will wear a dress designed by Reem Acra, a U.S.-based designer whose gowns frequent celebrity red carpets.

Dave M. Benett | Getty Images