Karen Mason Karen Mason has starred on Broadway, off-Broadway, television, and recording and "has few peers when it comes to ripping the roof off with her amazing voice that knows know bounds!" (TheatreScene.net). Her career has spanned intimate venues and the largest houses across the country. In the original Broadway production of Sunset Boulevard, she served as the standby to Glenn Close, Betty Buckley, and Elaine Paige for Normal Desmond. She originated Velma von Tussel in the original Broadway production of Hairspray, and originated the role of Tanya in Mamma Mia! on Broadway, a role which awarded her a Drama Desk nomination for Best Actress in a musical. As a concert hall headliner, she has played Carnegie Hall, the Kennedy Center, Lincoln Center, Birdland NYC, 54 Below, The Supper Club, and many more venues, sharing the stage with Jerry Herman, Chita Rivera, Rosemary Clooney, Luciano Pavarotti, Liza Minnelli, and John Kander & Fred Ebb, among many others. Accompanied by Grammy and Emmy Award winning music director and pianist John McDaniel, she will give an unforgettable cabaret concert in her Rehoboth Beach debut.