My three year old is all about singing songs right now. Just about every day she comes home from school singing a new song! I've taught her a few new ones this week as well, her version is always adorable! Lately she's into singing:

Hokey Pokey
Some goodbye song she sings at school
Chicken Dance
Bumblebee
ABC's
And her all time favorite is one she found on YouTube "daddy finger daddy finger where are you, here I am here I am, how do you do?" And then it repeats with other members of the family. It's SO cheesy but she is literally obsessed.