My hero Stan Freberg is making a rare New York appearance, performing some of his brilliant songs at a ritzy Manhattan night club. The club is Feinstein's at the Regency, which is over on Park Avenue, where there will be but seven performances of An Evening With Stan Freberg (assisted by the lovely Hunter Freberg) from January 28 through February 1 — two shows, Friday and Saturday nights; one show, the other nights. The number to call about tickets is (212) 339-4095 and if you're interested, you might want to phone now, since Feinstein's only seats 140 people. It's not a cheap place to spend an evening, but how often do you get to hear Freberg sing?