Giuliana DePandi thought she and then-beau Bill Rancic were just going on a helicopter tour of his native Chicago to see Christmas lights. While in flight, Rancic proposed, with Michael Bublé crooning on their headsets. The thoughtful Rancic had even stocked the aircraft with champagne and deep-dish pizza so they could celebrate. "I thought I was dreaming," said the E! news host. "It was the most amazing moment of my entire life."