Final preparations are under way for the wedding of Chelsea Clinton and Marc Mezvisky and Radaronline.com has the latest photos. The former first daughter and her investment banker fiancé are set to be married this Saturday at New York's uber-posh Astor Estate after a five-year courtship.

In preparation for the star-studded reception, workers on the site have built a huge white marquee as well as a gazebo where the couple reportedly will tie the knot. As an added security measure, marked police vehicles are parked throughout the property.