Beth Ostrosky Stern will celebrate her cover of the Labor Day issue of Social Life magazine Saturday night in Water Mill. The invite-only event starts at 7 p.m.

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Billy Joel will discuss "The Last Play at Shea" with Alec Baldwin Saturday night after a screening of the movie at Guild Hall in East Hampton. The sold-out event is being held in association with the Hamptons International Film Festival.

On Sunday night, DJ Samantha Ronson is expected to spin with Jus Ske at the Blue & Cream end-of-the-summer party at Georgica Restaurant & Lounge in East Hampton.