Complex sentence: In late May 2015, it was announced that she will join the cast of the musical production Prince of Broadway in Japan from October to December 2015 which celebrates the career of the 21-time Tony-winning director and producer Hal Prince.
Split into simpler sentences: In late May 2015, it was announced that she would join the cast of the musical production "Prince of Broadway" in Japan from October to December 2015. The musical celebrates the career of the 21-time Tony-winning director and producer Hal Prince.