Complex sentence: She has homes in Düsseldorf, Germany and in Long Island, New York, where she usually resided when not on tour, until her house in Long Island was destroyed by hurricane Irene in August 2011.
Split into simpler sentences: She has homes in Düsseldorf, Germany and in Long Island, New York, where she usually resided when not on tour. Her house in Long Island was destroyed by hurricane Irene in August 2011.