The often-extravagant wedding of celebs costs millions of dollars. According to the survey, the normal person spends less than $50,000 for a wedding! But for Celebrity that barely covers the cost of their wedding gown. Here is the list 20 most expensive celebrities wedding ever.

1. Chelsea Clinton and Marc Mezvinsky

Chelsea Clinton and Marc Mezvinsky married in 2010 at the Astor Courts estate in New York. The cost of their extravagant wedding was around $5 million.

Former U.S President Bill Clinton's daughter, Chelsea Clinton married Investment banker Marc Mezvinsky in 2010. The couple exchanged the vow in front of the 400 guests at the Astor Courts Estate in New York.

The wedding area was completely secured. The then Secretary of State and mother of the bride Hilary Clinton declared the area as no fly-over zone.

Marc wore custom Burberry tux whereas Chelsea wore custom Vera Wang gown with the matching diamond jewelry.

Total estimated cost was $5 million including catering cost $750,000, air conditioned tent cost $600,000, custom Burberry tux cost $20,000, security cost $200,000, and flowers, tables and invitations cost $669,000.