Anne Hathaway has signed on for a one-night-only singing gig at Joe’s Pub, the cabaret and live performance space at Off Broadway’s Public Theater.

She’ll host the evening and perform songs from 1966 musical “Cabaret” in a show called “Perfectly Marvelous,” helmed by frequent Broadway music director Ted Sperling, with music direction by another Rialto vet, Mary Mitchell Campbell. The event, slated for Oct. 24, is timed to be part of the Public’s programming that celebrates its newly spruced-up downtown outpost, soon to reopen officially after a $40 million renovation.

Also on the eight-week sked of events are movie nights that screen pics such as “Passing Strange” and docu “Joe Papp in Five Acts” as well as public conversations with Alec Baldwin, David Simon and Anna Deavere Smith, among others.

Other new additions and changes to the Public’s longtime home include an expanded lobby with a second tier, spruced-up food and drink service and a new box office. Joe’s Pub also has been refurbished.

Hathaway previously starred in the Public Theater’s 2009 production of “Twelfth Night” in Central Park.