Bride and Groom: Liza Minnelli and David Gest
Cost: $3.5 Million
The Deets: Perhaps 2002 was the year of very pricey weddings? David and Liza said their "I Do's" in front of more than 850 guests, including the late Elizabeth Taylor and Michael Jackson. The flowers alone cost more than $700,000. Unfortunately, the marriage lasted only a year. I mean, it probably didn't help that they looked like siblings.