Efron looked stylish at the event, wearing an all-black outfit, including a black blazer, T-shirt, and pants, along with black sunglasses. He was photographed alongside other stars, including Richard Gere and Gere's wife, Alejandra Silva. The trio were seen smiling and chatting together. Richard Gere, 75, received amfAR's Award of Inspiration at the event.

The Gala, hosted by Kate Beckinsale, also honoured Antonio Banderas and film producer Mohammed Al Turki. The evening featured performances by Kelly Rowland and Rumer Willis.

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Efron's appearance comes after his representative confirmed to PEOPLE that he had a "minor swimming incident" on August 2 while staying at a villa in Ibiza. Efron was hospitalised as a precaution after ingesting water into his lungs during a dive. Security at the villa pulled him out of the water when he showed signs of distress.

After X-rays confirmed that no water remained in his lungs, Efron was released from the hospital the next morning.

On August 4, Efron shared a photo of himself lifting weights, writing, "Happy and healthy. Thanks for the well wishes."