Japanese Princess Aiko, center, daughter of Crown Prince Naruhito and Princess Masako dances with fellow students at the Gakushuin elementary school during her school's athletic festival in Tokyo on Monday, Oct. 11, 2010. AP Photo logo AP Photo 2 hours ago

Japanese Princess Aiko, center, daughter of Crown Prince Naruhito and Princess Masako dances with fellow students at the Gakushuin elementary school during her school's athletic festival in Tokyo on Monday, Oct. 11, 2010.