A fun and lovely little ditty, “Spanish me and English me” from Sesame Street.
Have no fear, bilingualism is not uncommon and its less confusing the earlier they start learning.
This is a very cool explanation of what happens to your brain when you become bilingual. It even goes in to why language learning gets harder as you age. Did you know babies and children can use both hemispheres of their brains to learn a language while adults only use one?