After seeing all the supermodels who slayed on the red carpet along with a little behind-the-scenes on the making of a couture gown, we weren't sure if amfAR's 23rd Cinema Against AIDS Gala during this year's Cannes Film Festival could top all of that. But we were wrong. Just about the most star-studded event to take place in France, the annual auction went down with a slew of powerhouses in showbiz lending their support (and offering plenty of dough), Katy Perry's shimmery performance, and a retro disco-inspired collection presented on the runway by the likes of Soo Joo Park, Barbara Palvin, Bella Hadid, Karlie Kloss and more. 

 

But before all this happened, A-listers brought their best fashion game out that night: