Marc Malkin Senior Film Awards, Events & Lifestyle Editor Queen Latifah has signed on to host the 29th amfAR Gala Cannes. Considered one of the hottest tickets during the Cannes Film Festival, the HIV/AIDS research organization’s event takes place May 25 at Hôtel du Cap-Eden-Roc. Previously announced performers include Halsey, Gladys Knight, Adam Lambert and Bebe Rexha. Longtime amfAR supporter Carine Roitfeld returns to curate the annual fashion show. The theme of this year’s runway extravaganza will be “Icons” and will feature looks by iconic designers and worn by some of the world’s top models.