Fashion See All the Best Looks from amfAR's Star-Studded 22nd Cinema Against AIDS Gala By Kelsey Glein Kelsey Glein Twitter Kelsey Glein is a Seattle-based writer and editor who covers all things fashion, beauty, and pop culture. She was previously the Digital Editor of InStyle and is currently a Social Media Manager at a cosmetics company. InStyle's editorial guidelines Updated on May 21, 2015 @ 05:45PM Pin Share Tweet Email Photo: Getty Images (3) The most star-studded soirée of the Cannes Film Festival is finally here, and the amazing ensembles did not disappoint. A multitude of celebrities stepped out for amfAR's 22nd Cinema Against AIDS Gala tonight, a fundraising event held to benefit the organization’s research programs and platforms for raising awareness of HIV/AIDS. Some of our favorite red carpet looks? Kendall Jenner (in Calvin Klein Collection), Diane Kruger (in Chanel), and Sienna Miller (in Ralph Lauren Collection). But these three weren't the only immaculately dressed stars at the event—see what Karlie Kloss, Eva Longoria, Marion Cotillard, Doutzen Kroes, Adriana Lima, Rita Ora, Gigi Hadid, and more stars wore in our gallery. PHOTOS: See All the Best Looks from the amfAR Gala and the Cannes Film Festival