Original caption: Jack Pepper, Desert Sea News Bureau. Tribute to a Trouper. Las Vegas, Nevada: Marlene Dietrich held her stage presence Sunday, when suddenly presented with a five foot, 400 pound birthday cake during her appearance at the Hotel Sahara in Las Vegas. But when the curtain closed and the orchestra spontaneously serenaded her, Marlene proved to be a virtuoso by grabbing a violin and joining the orchestra. Marlene says she is 48.