Any ideas on how to add a dance routine for kids for the song "Who Says" by Selena Gomez?

I used to be a preschool teacher and now I am a dance studio owner and have choreographed for little ones for fifteen years. What I do is make them learn the words to the song and act them out. You can do more of a creative movement routine with them. It's easier at that age to go with the words of the song rather than with the counts. I am sure you will have a great show.