Here is Taylor Joy singing a variety of songs! Here is the translation:
She starts off singing "Down in heart, down in heart" from "I've got the joy joy joy" and then she goes to singing "Twinkle twinkle little star" while she proceeds to stuff cheerios into her mouth. It cracks me up because at first she's almost whispering a soft ballad and then all of the sudden it turns into a rock song! She gets distracted so easily and she goes to humming and dancing after that!