Another great thing to do in Southern California this Friday evening is to go hear Shelly Goldstein sing "Songs for Lovers and Those They've Dumped." That's the title of her one-woman show which she performs here and there — "here" being L.A., "there" being London — when she's not busy with writing-producing assignments. She is a superb singer and a brilliant wit, and she'll be singing and witting for one show only at The Gardenia, an intimate supper/night club located at 7066 Santa Monica Boulevard in West Hollywood. For reservations, call (323) 467-7444.