At the Cape Symphony's Holiday on the Cape in December, the Cape’s own Anna McEntee, Jenn Dashnaw, and Jessica Curran will appear as the Andrews Sisters. But who were the Andrews Sisters, exactly? Many of us are familiar with their swinging harmonies. Did you know that with over 90 million records sold, they are the best-selling female group of all time? They even had more top 10 hits than Elvis or the Beatles.