Outside Radio City Music Hall before the show, Jill Zarin, of “The Real Housewives of New York City,” gave out chocolates and posed for cameras in a stretchy blue and red dress by Marc Bouwer. She also bemoaned her dinner. “Don’t eat pizza right before you show up,” she said. “I was starving. I said, I’ve got a four-hour gig to sit in, there’s going to be no food or drink, I will die.”