The Life Ball took place on Saturday in Vienna. The annual giant AIDS fundraiser includes two parts: a fashion show featuring celebrities and models on the catwalk and a fancy fabulous party. This year, Patricia Field put the fashion show together, highlighting designers The Blonds. Saturday's ball was the first installment of the Life Ball's four-year themed series of Water, Earth, Air and Fire. The Water theme brought out some very special costumes. Katy Perry dressed as a seashell for her performance. Pam Anderson sported a gold lamé body suit (what else?) for her turn down the catwalk with a giant boom box. One reveler wore what we can only describe as fish boobs. And Bill Clinton attended too, wearing perhaps the farthest possible thing from fish boobs. See those photos and more in the slideshow!