Julianne Moore showing her support for Gigi Levangie Grazer at a party to celebrate the release of her fourth novel, “Queen Takes King” at MR CHOW TriBeCa on Thursday night. Moore joked “I could have been Gracie Pollock!” (the role Debra Messing played in “The Starter Wife” television show based on the character, Gracie Pollock, in the book.)

In Gigi Levangie Grazer’s novel “The Starter Wife,” the spouse of a Hollywood magnate has to figure out what to do when her husband leaves her for Britney Spears. In her new novel, “Queen Takes King,” the action takes place on Park Avenue — 740 Park, to be exact — where a woman has to figure out what to do when she learns on Page Six that her husband of 25 years is having an affair with a morning show anchor. The saga in the book appears to be inspired by the divorce of Les and Nancy Moonves, but the CBS honcho is taking it in stride. He showed up to Grazer’s book party at MR CHOW in TriBeCa on Thursday with his new wife, Julie Chen, and Grazer swore that all is well. “He’s my muse,” Grazer admitted, as Julianne Moore, Amanda Hesser and Candace Bushnell mingled nearby. “I’m forever grateful to Mr. Moonves.”