Here are 2 songs she sang...
The first is oyako pasha pasha. It is about washing your body and cleansing your heart and then going out to play! She is singing here with Tomo tomo, he is super amazing also!
the next song is a favourite! it is a famous song from the south islands of Japan. It is called Tinsagu nu hana translated as Impatience Balsamina(Garden/Rose Balsam) flower.
The translation of the song is here.