Stone, 55, was admitted to hospital with a migraine after attending a runway show by Italian fashion house Fendi on Friday, raising questions over whether she could chair the Saturday AIDS research fundraiser as planned.
The "Basic Instinct" star suffered a health scare in 2001 when she was hospitalized for a brain aneurysm - bleeding in the brain that can cause stroke - after suffering severe headaches.
Dressed in a deeply plunged long black draped dress, the actress smiled at cameras and reassured reporters outside the event about her condition.
more:Reuters
