Kim Kardashian\, Heidi Klum and others attend amfAR\'s New York Gala

ROUGH CUT - NO REPORTER NARRATION Kim and Kourtney Kardashian hit the red carpet at amfAR's 21st annual New York Gala on Wednesday (February 6).

The sisters were on hand to help celebrate the honorees, celebrity photographers Mert Alas and Marcus Piggott, who received the "Award of Courage in recognition of their longstanding commitment to the fight against AIDS." Model and actress Milla Jovovich and art auctioneer Simon de Pury were also honored during the gala.

Other celebrities in attendance were Heidi Klum, actress Michelle Rodriguez and Nicky Hilton Rothschild.

The yearly event benefits AIDS research with a live auction, and the evening's entertainment was provided by music duo The Chainsmokers with special guest Kelsea Ballerini.