Paris Hilton has found her fairytale ending!

The star married fiancé Carter Reum on Thursday in an extravagant ceremony and celebration planned by Mindy Weiss and held at the former Bel Air estate of the star's late grandfather Barron Hilton. The affair boasted celebrity guests, an extensive menu and multiple dress changes for the bride — two designed by Oscar de La Renta and one by Ghalia Lav, a source tells PEOPLE.