Clinton and Mezvinsky were friends as teenagers in Washington. Wedding function will be taking place at a secluded mansion protected by a no-fly zone and barricaded roads outside the village of Rhinebeck in New York.

According to the reports, around 400 to 500 guests will attend the wedding function of the daughter of former U.S. president Bill Clinton and his wife, Secretary of State Hillary Clinton. In the VIP guest list, Oprah Winfrey and Steven Spielberg are expected to be the part of marriage including many others.

On Friday, in the rehearsal dinner of Chelsea Clinton and Marc Mezvinsky marriage, about 100 of the families' closest friends reportedly were invited at the Beekman Arms Hotel.

According to the various media reports, the wedding cost has been estimated at anywhere from $3 million to $6 million.

Media from across the country as well as other parts of the world are keeping its eyes on the Chelsea Clinton and her longtime boyfriend, investment banker Marc Mezvinsky's wedding function for the last several days.