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With writers and producers still at loggerheads, Jon Stewart has pulled out of an entertainment gala — only it’s not the Oscars.

The comedian has withdrawn from a hosting gig at a Paley Center fundraiser honoring Viacom chieftain Sumner Redstone under circumstances that might be related to the 3-month-old labor stoppage.

The invite for the black-tie event Thursday at the New York Waldorf-Astoria, sent out several weeks ago, proclaims the Redstone event and announced Stewart, who hosts a show owned by Viacom’s Comedy Central, as the evening’s emcee.

But as of Tuesday, organizers said that Stewart wouldn’t host, with Charlie Rose filling in as emcee.

Reps for Viacom and the Paley Center spokesperson on Tuesday both chalked up the decision to Stewart’s added workload hosting “The Daily Show With Jon Stewart” without his stable of writers, who remain on strike.

But sources said that with the threat of the WGA picketing the Paley Center event, Stewart decided it best to stay home.