In case you weren’t in Cannes last eve for the month’s chicest red carpet, here are 30 haute looks from the amfAR Cinema Against AIDS Gala that took place at Hôtel du Cap-Eden-Roc. Heidi Klum in Atelier Versace got quite the hug from a Dolce & Gabbana-clad Justin Bieber, while a slew of supermods, including Karlie Kloss, Jourdan Dunn, and Chanel Iman, rubbed elbows with A-listers like Jessica Chastain and Sharon Stone. Carine Roitfeld was in charge of putting together the evening’s fashion show, for which she selected the theme (red) and the honoree (Marilyn Monroe). The event raised $38 million dollars for AIDS research, making this tony gala a charitable and sartorial success. Next month amfAR returns to New York and honors HBO and Calvin Klein Collection at the 5th Inspiration Gala at The Plaza. Click through the Slideshow to see who wore what on the tapis rouge…Who’s the best dressed in your book, darlings?