Parties! The style, stars and scoop from Hollywood's hottest events

While there was no shortage of beautiful women at the charity: ball, a multimedia exhibition and cocktail party in N.Y.C. that benefited charity:, host Adrian Grenier's mind was firmly on the water crisis in Africa. "I have no problem mingling," said the Entourage star, "but this cause is where my heart is at." The actor added: "Celebrities show up to events like this and hope people will follow their lead, but it's more important that I do my part as a citizen. It may be a drop in the bucket," he added of his eco-friendly lifestyle, "but every drop counts."