ABC News’ Maggie Rulli reports from Italy, sharing the star-studded details on Amazon CEO Jeff Bezos and Lauren Sanchez's nuptials.

Oprah Winfrey, Kim and Khloe Kardashian, Tom Brady, Bill Gates and Leonardo DiCaprio are among the many already gathered in Venice for the lavish celebrations.

Bezos and Sánchez were also spotted in Italy multiple times in the lead-up to their big day.People reported that the ceremony was originally supposed to take place on Saturday, but it was moved to Friday as the venue changed due to security concerns amid protests in the city.